99118720 has 32 divisors (see below), whose sum is σ = 236957220. Its totient is φ = 39647232.

The previous prime is 99118703. The next prime is 99118751. The reversal of 99118720 is 2781199.

It can be written as a sum of positive squares in 2 ways, for example, as 98565184 + 553536 = 9928^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 99118720.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76797 + ... + 78076.

Almost surely, 2^99118720 is an apocalyptic number.

It is an amenable number.

99118720 is an abundant number, since it is smaller than the sum of its proper divisors (137838500).

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

99118720 is a wasteful number, since it uses less digits than its factorization.

99118720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154892 (or 154880 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 99118720 is about 9955.8384880431. The cubic root of 99118720 is about 462.7913450426.

The spelling of 99118720 in words is "ninety-nine million, one hundred eighteen thousand, seven hundred twenty".