763812 has 54 divisors (see below), whose sum is σ = 2251158. Its totient is φ = 217728.

The previous prime is 763811. The next prime is 763823. The reversal of 763812 is 218367.

It can be written as a sum of positive squares in only one way, i.e., 509796 + 254016 = 714^2 + 504^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (763811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1548 + ... + 1980.

2⁷⁶³⁸¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 763812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125579).

763812 is an abundant number, since it is smaller than the sum of its proper divisors (1487346).

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

763812 is a wasteful number, since it uses less digits than its factorization.

763812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 445 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 763812 is about 873.9633859608. The cubic root of 763812 is about 91.4103753781.

The spelling of 763812 in words is "seven hundred sixty-three thousand, eight hundred twelve".