99118657 has 4 divisors (see below), whose sum is σ = 108129456. Its totient is φ = 90107860.

The previous prime is 99118637. The next prime is 99118681. The reversal of 99118657 is 75681199.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99118657 - 2⁷ = 99118529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99118637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505383 + ... + 4505404.

It is an arithmetic number, because the mean of its divisors is an integer number (27032364).

Almost surely, 2^99118657 is an apocalyptic number.

It is an amenable number.

99118657 is a deficient number, since it is larger than the sum of its proper divisors (9010799).

99118657 is a wasteful number, since it uses less digits than its factorization.

99118657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010798.

The product of its digits is 136080, while the sum is 46.

The square root of 99118657 is about 9955.8353240700. The cubic root of 99118657 is about 462.7912469923.

The spelling of 99118657 in words is "ninety-nine million, one hundred eighteen thousand, six hundred fifty-seven".