99909124 has 24 divisors (see below), whose sum is σ = 204467648. Its totient is φ = 41821920.

The previous prime is 99909113. The next prime is 99909137. The reversal of 99909124 is 42190999.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40287 + ... + 42694.

Almost surely, 2^99909124 is an apocalyptic number.

It is an amenable number.

99909124 is an abundant number, since it is smaller than the sum of its proper divisors (104558524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99909124 is a wasteful number, since it uses less digits than its factorization.

99909124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83035 (or 83033 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 99909124 is about 9995.4551672248. The cubic root of 99909124 is about 464.0182377394.

The spelling of 99909124 in words is "ninety-nine million, nine hundred nine thousand, one hundred twenty-four".