764074057 has 2 divisors, whose sum is σ = 764074058. Its totient is φ = 764074056.

The previous prime is 764073979. The next prime is 764074063. The reversal of 764074057 is 750470467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732027136 + 32046921 = 27056^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 764074057 - 2¹⁹ = 763549769 is a prime.

It is equal to p_39391366 and since 764074057 and 39391366 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (764074067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382037028 + 382037029.

It is an arithmetic number, because the mean of its divisors is an integer number (382037029).

Almost surely, 2^764074057 is an apocalyptic number.

It is an amenable number.

764074057 is a deficient number, since it is larger than the sum of its proper divisors (1).

764074057 is an equidigital number, since it uses as much as digits as its factorization.

764074057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 764074057 is about 27641.8895338217. The cubic root of 764074057 is about 914.2082820758.

The spelling of 764074057 in words is "seven hundred sixty-four million, seventy-four thousand, fifty-seven".