90113572 has 24 divisors (see below), whose sum is σ = 162584352. Its totient is φ = 43675200.

The previous prime is 90113539. The next prime is 90113579. The reversal of 90113572 is 27531109.

It is a self number, because there is not a number n which added to its sum of digits gives 90113572.

It is not an unprimeable number, because it can be changed into a prime (90113579) 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, 25047 + ... + 28417.

It is an arithmetic number, because the mean of its divisors is an integer number (6774348).

Almost surely, 2^90113572 is an apocalyptic number.

It is an amenable number.

90113572 is a deficient number, since it is larger than the sum of its proper divisors (72470780).

90113572 is a wasteful number, since it uses less digits than its factorization.

90113572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 90113572 is about 9492.8168632919. The cubic root of 90113572 is about 448.3288999007.

The spelling of 90113572 in words is "ninety million, one hundred thirteen thousand, five hundred seventy-two".