656929057 has 2 divisors, whose sum is σ = 656929058. Its totient is φ = 656929056.

The previous prime is 656929033. The next prime is 656929061. The reversal of 656929057 is 750929656.

656929057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639280656 + 17648401 = 25284^2 + 4201^2 .

It is a cyclic number.

It is not a de Polignac number, because 656929057 - 2⁷ = 656928929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 656929057.

It is not a weakly prime, because it can be changed into another prime (656929067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328464528 + 328464529.

It is an arithmetic number, because the mean of its divisors is an integer number (328464529).

Almost surely, 2^656929057 is an apocalyptic number.

It is an amenable number.

656929057 is a deficient number, since it is larger than the sum of its proper divisors (1).

656929057 is an equidigital number, since it uses as much as digits as its factorization.

656929057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 656929057 is about 25630.6273235752. The cubic root of 656929057 is about 869.3062937984.

The spelling of 656929057 in words is "six hundred fifty-six million, nine hundred twenty-nine thousand, fifty-seven".