764872 has 16 divisors (see below), whose sum is σ = 1456560. Its totient is φ = 376464.

The previous prime is 764857. The next prime is 764887. The reversal of 764872 is 278467.

It is an interprime number because it is at equal distance from previous prime (764857) and next prime (764887).

It is an Ulam number.

It is an unprimeable number.

764872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 178 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (91035).

2⁷⁶⁴⁸⁷² is an apocalyptic number.

It is an amenable number.

764872 is a deficient number, since it is larger than the sum of its proper divisors (691688).

764872 is a wasteful number, since it uses less digits than its factorization.

764872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1496 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 764872 is about 874.5696084361. The cubic root of 764872 is about 91.4526415420.

The spelling of 764872 in words is "seven hundred sixty-four thousand, eight hundred seventy-two".