764880 has 40 divisors (see below), whose sum is σ = 2371872. Its totient is φ = 203904.

The previous prime is 764857. The next prime is 764887. The reversal of 764880 is 88467.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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

764880 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 7 ways as a sum of consecutive naturals, for example, 1354 + ... + 1833.

2⁷⁶⁴⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

764880 is an abundant number, since it is smaller than the sum of its proper divisors (1606992).

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

764880 is a wasteful number, since it uses less digits than its factorization.

764880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 764880 is about 874.5741821024. The cubic root of 764880 is about 91.4529603834.

The spelling of 764880 in words is "seven hundred sixty-four thousand, eight hundred eighty".