764920 has 32 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 282240.

The previous prime is 764903. The next prime is 764947. The reversal of 764920 is 29467.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216 + ... + 1255.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2⁷⁶⁴⁹²⁰ is an apocalyptic number.

It is an amenable number.

764920 is an abundant number, since it is smaller than the sum of its proper divisors (1089800).

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

764920 is a wasteful number, since it uses less digits than its factorization.

764920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 764920 is about 874.5970500751. The cubic root of 764920 is about 91.4545545571.

The spelling of 764920 in words is "seven hundred sixty-four thousand, nine hundred twenty".