99618715 has 24 divisors (see below), whose sum is σ = 139650912. Its totient is φ = 68019840.

The previous prime is 99618707. The next prime is 99618731. The reversal of 99618715 is 51781699.

It is a happy number.

It is not a de Polignac number, because 99618715 - 2³ = 99618707 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68122 + ... + 69568.

It is an arithmetic number, because the mean of its divisors is an integer number (5818788).

Almost surely, 2^99618715 is an apocalyptic number.

99618715 is a deficient number, since it is larger than the sum of its proper divisors (40032197).

99618715 is a wasteful number, since it uses less digits than its factorization.

99618715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747 (or 1740 counting only the distinct ones).

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

The square root of 99618715 is about 9980.9175429917. The cubic root of 99618715 is about 463.5682092739.

The spelling of 99618715 in words is "ninety-nine million, six hundred eighteen thousand, seven hundred fifteen".