99938408 has 16 divisors (see below), whose sum is σ = 193846500. Its totient is φ = 48246016.

The previous prime is 99938401. The next prime is 99938431. The reversal of 99938408 is 80483999.

It can be written as a sum of positive squares in 2 ways, for example, as 89453764 + 10484644 = 9458^2 + 3238^2 .

It is not an unprimeable number, because it can be changed into a prime (99938401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215153 + ... + 215616.

Almost surely, 2^99938408 is an apocalyptic number.

It is an amenable number.

99938408 is a deficient number, since it is larger than the sum of its proper divisors (93908092).

99938408 is a wasteful number, since it uses less digits than its factorization.

99938408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430804 (or 430800 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 99938408 is about 9996.9199256571. The cubic root of 99938408 is about 464.0635688768.

The spelling of 99938408 in words is "ninety-nine million, nine hundred thirty-eight thousand, four hundred eight".