9910000657 has 2 divisors, whose sum is σ = 9910000658. Its totient is φ = 9910000656.

The previous prime is 9910000631. The next prime is 9910000721. The reversal of 9910000657 is 7560000199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4982101056 + 4927899601 = 70584^2 + 70199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9910000657 is a prime.

It is a super-2 number, since 2×9910000657² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9910000057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4955000328 + 4955000329.

It is an arithmetic number, because the mean of its divisors is an integer number (4955000329).

Almost surely, 2^9910000657 is an apocalyptic number.

It is an amenable number.

9910000657 is a deficient number, since it is larger than the sum of its proper divisors (1).

9910000657 is an equidigital number, since it uses as much as digits as its factorization.

9910000657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 9910000657 is about 99548.9862178415. The cubic root of 9910000657 is about 2147.9519459818.

The spelling of 9910000657 in words is "nine billion, nine hundred ten million, six hundred fifty-seven", and thus it is an aban number.