90980808 has 32 divisors (see below), whose sum is σ = 228117600. Its totient is φ = 30238208.

The previous prime is 90980803. The next prime is 90980831. The reversal of 90980808 is 80808909.

It is a self number, because there is not a number n which added to its sum of digits gives 90980808.

It is not an unprimeable number, because it can be changed into a prime (90980803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103 + ... + 13841.

It is an arithmetic number, because the mean of its divisors is an integer number (7128675).

Almost surely, 2^90980808 is an apocalyptic number.

It is an amenable number.

90980808 is an abundant number, since it is smaller than the sum of its proper divisors (137136792).

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

90980808 is a wasteful number, since it uses less digits than its factorization.

90980808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101 (or 11097 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 90980808 is about 9538.3860269964. The cubic root of 90980808 is about 449.7625216112.

The spelling of 90980808 in words is "ninety million, nine hundred eighty thousand, eight hundred eight".