90569612 has 12 divisors (see below), whose sum is σ = 181139280. Its totient is φ = 38815536.

The previous prime is 90569593. The next prime is 90569621. The reversal of 90569612 is 21696509.

90569612 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617287 + ... + 1617342.

It is an arithmetic number, because the mean of its divisors is an integer number (15094940).

Almost surely, 2^90569612 is an apocalyptic number.

It is an amenable number.

90569612 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.

90569612 is a wasteful number, since it uses less digits than its factorization.

90569612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234640 (or 3234638 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90569612 is about 9516.8068174152. The cubic root of 90569612 is about 449.0839174304.

The spelling of 90569612 in words is "ninety million, five hundred sixty-nine thousand, six hundred twelve".