99439588 has 6 divisors (see below), whose sum is σ = 174019286. Its totient is φ = 49719792.

The previous prime is 99439567. The next prime is 99439621. The reversal of 99439588 is 88593499.

It can be written as a sum of positive squares in only one way, i.e., 94322944 + 5116644 = 9712^2 + 2262^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12429945 + ... + 12429952.

Almost surely, 2^99439588 is an apocalyptic number.

It is an amenable number.

99439588 is a deficient number, since it is larger than the sum of its proper divisors (74579698).

99439588 is a wasteful number, since it uses less digits than its factorization.

99439588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24859901 (or 24859899 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 55.

The square root of 99439588 is about 9971.9400319095. The cubic root of 99439588 is about 463.2901912225.

The spelling of 99439588 in words is "ninety-nine million, four hundred thirty-nine thousand, five hundred eighty-eight".