99118730 has 48 divisors (see below), whose sum is σ = 191475144. Its totient is φ = 36917760.

The previous prime is 99118703. The next prime is 99118751. The reversal of 99118730 is 3781199.

It can be written as a sum of positive squares in 4 ways, for example, as 72812089 + 26306641 = 8533^2 + 5129^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Curzon 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, 216662 + ... + 217118.

Almost surely, 2^99118730 is an apocalyptic number.

99118730 is a deficient number, since it is larger than the sum of its proper divisors (92356414).

99118730 is a wasteful number, since it uses less digits than its factorization.

99118730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 99118730 is about 9955.8389902609. The cubic root of 99118730 is about 462.7913606062.

The spelling of 99118730 in words is "ninety-nine million, one hundred eighteen thousand, seven hundred thirty".