99589920 has 48 divisors (see below), whose sum is σ = 313709760. Its totient is φ = 26557184.

The previous prime is 99589913. The next prime is 99589933. The reversal of 99589920 is 2998599.

It is a tau number, because it is divible by the number of its divisors (48).

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, 103260 + ... + 104219.

It is an arithmetic number, because the mean of its divisors is an integer number (6535620).

Almost surely, 2^99589920 is an apocalyptic number.

It is an amenable number.

99589920 is an abundant number, since it is smaller than the sum of its proper divisors (214119840).

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

99589920 is a wasteful number, since it uses less digits than its factorization.

99589920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207497 (or 207489 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 51.

The square root of 99589920 is about 9979.4749360876. The cubic root of 99589920 is about 463.5235398464.

The spelling of 99589920 in words is "ninety-nine million, five hundred eighty-nine thousand, nine hundred twenty".