99658899 has 12 divisors (see below), whose sum is σ = 144786096. Its totient is φ = 66054192.

The previous prime is 99658891. The next prime is 99658903. The reversal of 99658899 is 99885699.

It is not a de Polignac number, because 99658899 - 2³ = 99658891 is a prime.

It is a super-2 number, since 2×99658899² = 19863792299784402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99658891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30447 + ... + 33560.

It is an arithmetic number, because the mean of its divisors is an integer number (12065508).

Almost surely, 2^99658899 is an apocalyptic number.

99658899 is a deficient number, since it is larger than the sum of its proper divisors (45127197).

99658899 is a wasteful number, since it uses less digits than its factorization.

99658899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64186 (or 64183 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 63.

The square root of 99658899 is about 9982.9303814061. The cubic root of 99658899 is about 463.6305319703.

It can be divided in two parts, 996 and 58899, that added together give a palindrome (59895).

The spelling of 99658899 in words is "ninety-nine million, six hundred fifty-eight thousand, eight hundred ninety-nine".