90864408 has 32 divisors (see below), whose sum is σ = 228150000. Its totient is φ = 30156288.

The previous prime is 90864391. The next prime is 90864409. The reversal of 90864408 is 80446809.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90864409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2533 + ... + 13716.

Almost surely, 2^90864408 is an apocalyptic number.

It is an amenable number.

90864408 is an abundant number, since it is smaller than the sum of its proper divisors (137285592).

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

90864408 is a wasteful number, since it uses less digits than its factorization.

90864408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491 (or 16487 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 90864408 is about 9532.2824129376. The cubic root of 90864408 is about 449.5706324245.

The spelling of 90864408 in words is "ninety million, eight hundred sixty-four thousand, four hundred eight".