99659808 has 60 divisors (see below), whose sum is σ = 293104350. Its totient is φ = 33219072.

The previous prime is 99659783. The next prime is 99659809. The reversal of 99659808 is 80895699.

It can be written as a sum of positive squares in only one way, i.e., 99440784 + 219024 = 9972^2 + 468^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99659809) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16633 + ... + 21816.

Almost surely, 2^99659808 is an apocalyptic number.

It is an amenable number.

99659808 is an abundant number, since it is smaller than the sum of its proper divisors (193444542).

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

99659808 is a wasteful number, since it uses less digits than its factorization.

99659808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38471 (or 38454 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 99659808 is about 9982.9759090163. The cubic root of 99659808 is about 463.6319415747.

The spelling of 99659808 in words is "ninety-nine million, six hundred fifty-nine thousand, eight hundred eight".