761212656 has 120 divisors (see below), whose sum is σ = 2279722640. Its totient is φ = 236390400.

The previous prime is 761212649. The next prime is 761212663. The reversal of 761212656 is 656212167.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (761212649) and next prime (761212663).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 761212656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164616 + ... + 169176.

Almost surely, 2^761212656 is an apocalyptic number.

761212656 is a gapful number since it is divisible by the number (76) 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 761212656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139861320).

761212656 is an abundant number, since it is smaller than the sum of its proper divisors (1518509984).

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

761212656 is a wasteful number, since it uses less digits than its factorization.

761212656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655 (or 4646 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 761212656 is about 27590.0825660236. The cubic root of 761212656 is about 913.0656403162.

The spelling of 761212656 in words is "seven hundred sixty-one million, two hundred twelve thousand, six hundred fifty-six".