770057864 has 8 divisors (see below), whose sum is σ = 1443858510. Its totient is φ = 385028928.

The previous prime is 770057863. The next prime is 770057881. The reversal of 770057864 is 468750077.

It can be written as a sum of positive squares in only one way, i.e., 658332964 + 111724900 = 25658^2 + 10570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×770057864² = 1185978227816484992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (770057861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48128609 + ... + 48128624.

Almost surely, 2^770057864 is an apocalyptic number.

It is an amenable number.

770057864 is a deficient number, since it is larger than the sum of its proper divisors (673800646).

770057864 is a wasteful number, since it uses less digits than its factorization.

770057864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96257239 (or 96257235 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 770057864 is about 27749.9164683427. The cubic root of 770057864 is about 916.5886042322.

The spelling of 770057864 in words is "seven hundred seventy million, fifty-seven thousand, eight hundred sixty-four".