90317572 has 6 divisors (see below), whose sum is σ = 158055758. Its totient is φ = 45158784.

The previous prime is 90317567. The next prime is 90317593. The reversal of 90317572 is 27571309.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 12278016 = 8834^2 + 3504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11289693 + ... + 11289700.

Almost surely, 2^90317572 is an apocalyptic number.

It is an amenable number.

90317572 is a deficient number, since it is larger than the sum of its proper divisors (67738186).

90317572 is a wasteful number, since it uses less digits than its factorization.

90317572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22579397 (or 22579395 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 90317572 is about 9503.5557556106. Note that the first 3 decimals coincide. The cubic root of 90317572 is about 448.6669554044. Note that the first 3 decimals are identical.

The spelling of 90317572 in words is "ninety million, three hundred seventeen thousand, five hundred seventy-two".