763821264 has 40 divisors (see below), whose sum is σ = 1974714880. Its totient is φ = 254412288.

The previous prime is 763821259. The next prime is 763821277. The reversal of 763821264 is 462128367.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66129 + ... + 76815.

It is an arithmetic number, because the mean of its divisors is an integer number (49367872).

Almost surely, 2^763821264 is an apocalyptic number.

It is an amenable number.

763821264 is an abundant number, since it is smaller than the sum of its proper divisors (1210893616).

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

763821264 is a wasteful number, since it uses less digits than its factorization.

763821264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187 (or 12181 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 763821264 is about 27637.3165122810. The cubic root of 763821264 is about 914.1074493778.

The spelling of 763821264 in words is "seven hundred sixty-three million, eight hundred twenty-one thousand, two hundred sixty-four".