764465265 has 48 divisors (see below), whose sum is σ = 1411025616. Its totient is φ = 381542400.

The previous prime is 764465257. The next prime is 764465321. The reversal of 764465265 is 562564467.

It can be written as a sum of positive squares in 8 ways, for example, as 103306896 + 661158369 = 10164^2 + 25713^2 .

It is not a de Polignac number, because 764465265 - 2³ = 764465257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 764465265.

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 47 ways as a sum of consecutive naturals, for example, 135705 + ... + 141225.

It is an arithmetic number, because the mean of its divisors is an integer number (29396367).

Almost surely, 2^764465265 is an apocalyptic number.

It is an amenable number.

764465265 is a deficient number, since it is larger than the sum of its proper divisors (646560351).

764465265 is a wasteful number, since it uses less digits than its factorization.

764465265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5727 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 764465265 is about 27648.9649896700. The cubic root of 764465265 is about 914.3642811657.

The spelling of 764465265 in words is "seven hundred sixty-four million, four hundred sixty-five thousand, two hundred sixty-five".