90817008 has 20 divisors (see below), whose sum is σ = 234610728. Its totient is φ = 30272320.

The previous prime is 90817007. The next prime is 90817031. The reversal of 90817008 is 80071809.

It is a self number, because there is not a number n which added to its sum of digits gives 90817008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90817007) 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, 945963 + ... + 946058.

Almost surely, 2^90817008 is an apocalyptic number.

It is an amenable number.

90817008 is an abundant number, since it is smaller than the sum of its proper divisors (143793720).

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

90817008 is a wasteful number, since it uses less digits than its factorization.

90817008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892032 (or 1892026 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 90817008 is about 9529.7958005405. The cubic root of 90817008 is about 449.4924450280.

The spelling of 90817008 in words is "ninety million, eight hundred seventeen thousand, eight".