763663740 has 96 divisors (see below), whose sum is σ = 2460326400. Its totient is φ = 173366016.

The previous prime is 763663739. The next prime is 763663741. The reversal of 763663740 is 47366367.

763663740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (763663739) and next prime (763663741).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 763663692 and 763663701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763663741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56479 + ... + 68681.

It is an arithmetic number, because the mean of its divisors is an integer number (25628400).

Almost surely, 2^763663740 is an apocalyptic number.

763663740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 763663740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230163200).

763663740 is an abundant number, since it is smaller than the sum of its proper divisors (1696662660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

763663740 is a wasteful number, since it uses less digits than its factorization.

763663740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371 (or 12369 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 42.

The square root of 763663740 is about 27634.4665228045. The cubic root of 763663740 is about 914.0446058094.

The spelling of 763663740 in words is "seven hundred sixty-three million, six hundred sixty-three thousand, seven hundred forty".