90920572 has 12 divisors (see below), whose sum is σ = 160656496. Its totient is φ = 45018720.

The previous prime is 90920569. The next prime is 90920579. The reversal of 90920572 is 27502909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90920579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109929 + ... + 110752.

Almost surely, 2^90920572 is an apocalyptic number.

It is an amenable number.

90920572 is a deficient number, since it is larger than the sum of its proper divisors (69735924).

90920572 is a wasteful number, since it uses less digits than its factorization.

90920572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220788 (or 220786 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 90920572 is about 9535.2279469345. The cubic root of 90920572 is about 449.6632410523.

The spelling of 90920572 in words is "ninety million, nine hundred twenty thousand, five hundred seventy-two".