90900908 has 12 divisors (see below), whose sum is σ = 181801872. Its totient is φ = 38957520.

The previous prime is 90900907. The next prime is 90900913. The reversal of 90900908 is 80900909.

90900908 is an admirable number.

It is a super-3 number, since 3×90900908³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90900907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623203 + ... + 1623258.

It is an arithmetic number, because the mean of its divisors is an integer number (15150156).

Almost surely, 2^90900908 is an apocalyptic number.

It is an amenable number.

90900908 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90900908 is a wasteful number, since it uses less digits than its factorization.

90900908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246472 (or 3246470 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 90900908 is about 9534.1967674262. The cubic root of 90900908 is about 449.6308214898.

Subtracting from 90900908 its reverse (80900909), we obtain a palindrome (9999999).

The spelling of 90900908 in words is "ninety million, nine hundred thousand, nine hundred eight".