99800604 has 18 divisors (see below), whose sum is σ = 252273840. Its totient is φ = 33266856.

The previous prime is 99800579. The next prime is 99800627. The reversal of 99800604 is 40600899.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2772239 = 99800604 / (9 + 9 + 8 + 0 + 0 + 6 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1386084 + ... + 1386155.

Almost surely, 2^99800604 is an apocalyptic number.

It is an amenable number.

99800604 is an abundant number, since it is smaller than the sum of its proper divisors (152473236).

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

99800604 is a wasteful number, since it uses less digits than its factorization.

99800604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772249 (or 2772244 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 99800604 is about 9990.0252251934. The cubic root of 99800604 is about 463.8501733361.

The spelling of 99800604 in words is "ninety-nine million, eight hundred thousand, six hundred four".