64100657 has 2 divisors, whose sum is σ = 64100658. Its totient is φ = 64100656.

The previous prime is 64100639. The next prime is 64100669. The reversal of 64100657 is 75600146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 1437601 = 7916^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 64100657 - 2⁶ = 64100593 is a prime.

It is not a weakly prime, because it can be changed into another prime (64100627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32050328 + 32050329.

It is an arithmetic number, because the mean of its divisors is an integer number (32050329).

Almost surely, 2^64100657 is an apocalyptic number.

It is an amenable number.

64100657 is a deficient number, since it is larger than the sum of its proper divisors (1).

64100657 is an equidigital number, since it uses as much as digits as its factorization.

64100657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 64100657 is about 8006.2885908516. The cubic root of 64100657 is about 400.2095922419.

The spelling of 64100657 in words is "sixty-four million, one hundred thousand, six hundred fifty-seven".