764345885 has 16 divisors (see below), whose sum is σ = 945924480. Its totient is φ = 592630080.

The previous prime is 764345873. The next prime is 764345887. The reversal of 764345885 is 588543467.

It is a de Polignac number, because none of the positive numbers 2^k-764345885 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764345887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2699 + ... + 39191.

It is an arithmetic number, because the mean of its divisors is an integer number (59120280).

Almost surely, 2^764345885 is an apocalyptic number.

It is an amenable number.

764345885 is a deficient number, since it is larger than the sum of its proper divisors (181578595).

764345885 is a wasteful number, since it uses less digits than its factorization.

764345885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36628.

The product of its digits is 3225600, while the sum is 50.

The square root of 764345885 is about 27646.8060542262. The cubic root of 764345885 is about 914.3166825390.

The spelling of 764345885 in words is "seven hundred sixty-four million, three hundred forty-five thousand, eight hundred eighty-five".