764885 has 8 divisors (see below), whose sum is σ = 1001376. Its totient is φ = 556240.

The previous prime is 764857. The next prime is 764887. The reversal of 764885 is 588467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 764885 - 2⁸ = 764629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764887) by changing a digit.

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, 6899 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (125172).

2⁷⁶⁴⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

764885 is a deficient number, since it is larger than the sum of its proper divisors (236491).

764885 is a wasteful number, since it uses less digits than its factorization.

764885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13923.

The product of its digits is 53760, while the sum is 38.

The square root of 764885 is about 874.5770406316. The cubic root of 764885 is about 91.4531596582.

The spelling of 764885 in words is "seven hundred sixty-four thousand, eight hundred eighty-five".