764343057 has 16 divisors (see below), whose sum is σ = 1024021760. Its totient is φ = 507120912.

The previous prime is 764343043. The next prime is 764343059. The reversal of 764343057 is 750343467.

It is not a de Polignac number, because 764343057 - 2²⁰ = 763294481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764343059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970818 + ... + 971604.

It is an arithmetic number, because the mean of its divisors is an integer number (64001360).

Almost surely, 2^764343057 is an apocalyptic number.

It is an amenable number.

764343057 is a deficient number, since it is larger than the sum of its proper divisors (259678703).

764343057 is a wasteful number, since it uses less digits than its factorization.

764343057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 211680, while the sum is 39.

The square root of 764343057 is about 27646.7549090305. The cubic root of 764343057 is about 914.3155549122.

The spelling of 764343057 in words is "seven hundred sixty-four million, three hundred forty-three thousand, fifty-seven".