99870808 has 32 divisors (see below), whose sum is σ = 189876960. Its totient is φ = 49242880.

The previous prime is 99870787. The next prime is 99870833. The reversal of 99870808 is 80807899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320973 + ... + 321283.

It is an arithmetic number, because the mean of its divisors is an integer number (5933655).

Almost surely, 2^99870808 is an apocalyptic number.

It is an amenable number.

99870808 is a deficient number, since it is larger than the sum of its proper divisors (90006152).

99870808 is a wasteful number, since it uses less digits than its factorization.

99870808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 99870808 is about 9993.5383123296. The cubic root of 99870808 is about 463.9589118393.

The spelling of 99870808 in words is "ninety-nine million, eight hundred seventy thousand, eight hundred eight".