99139008 has 28 divisors (see below), whose sum is σ = 262305800. Its totient is φ = 33046272.

The previous prime is 99139003. The next prime is 99139013. The reversal of 99139008 is 80093199.

It is an interprime number because it is at equal distance from previous prime (99139003) and next prime (99139013).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99139003) 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, 257983 + ... + 258366.

Almost surely, 2^99139008 is an apocalyptic number.

It is an amenable number.

99139008 is an abundant number, since it is smaller than the sum of its proper divisors (163166792).

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

99139008 is a wasteful number, since it uses less digits than its factorization.

99139008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516364 (or 516354 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 99139008 is about 9956.8573355251. The cubic root of 99139008 is about 462.8229181914.

The spelling of 99139008 in words is "ninety-nine million, one hundred thirty-nine thousand, eight".