90023528 has 16 divisors (see below), whose sum is σ = 192907680. Its totient is φ = 38581488.

The previous prime is 90023519. The next prime is 90023533. The reversal of 90023528 is 82532009.

It is a self number, because there is not a number n which added to its sum of digits gives 90023528.

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, 803726 + ... + 803837.

It is an arithmetic number, because the mean of its divisors is an integer number (12056730).

Almost surely, 2^90023528 is an apocalyptic number.

It is an amenable number.

90023528 is an abundant number, since it is smaller than the sum of its proper divisors (102884152).

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

90023528 is a wasteful number, since it uses less digits than its factorization.

90023528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607576 (or 1607572 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 90023528 is about 9488.0729339524. The cubic root of 90023528 is about 448.1795225462.

The spelling of 90023528 in words is "ninety million, twenty-three thousand, five hundred twenty-eight".