99512657 has 2 divisors, whose sum is σ = 99512658. Its totient is φ = 99512656.

The previous prime is 99512653. The next prime is 99512683. The reversal of 99512657 is 75621599.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99281296 + 231361 = 9964^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 99512657 - 2² = 99512653 is a prime.

It is not a weakly prime, because it can be changed into another prime (99512653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49756328 + 49756329.

It is an arithmetic number, because the mean of its divisors is an integer number (49756329).

Almost surely, 2^99512657 is an apocalyptic number.

It is an amenable number.

99512657 is a deficient number, since it is larger than the sum of its proper divisors (1).

99512657 is an equidigital number, since it uses as much as digits as its factorization.

99512657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170100, while the sum is 44.

The square root of 99512657 is about 9975.6030895380. The cubic root of 99512657 is about 463.4036398783.

The spelling of 99512657 in words is "ninety-nine million, five hundred twelve thousand, six hundred fifty-seven".