90572858 has 8 divisors (see below), whose sum is σ = 140544180. Its totient is φ = 43724800.

The previous prime is 90572857. The next prime is 90572869. The reversal of 90572858 is 85827509.

It can be written as a sum of positive squares in 2 ways, for example, as 78552769 + 12020089 = 8863^2 + 3467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90572857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780743 + ... + 780858.

Almost surely, 2^90572858 is an apocalyptic number.

90572858 is a deficient number, since it is larger than the sum of its proper divisors (49971322).

90572858 is a wasteful number, since it uses less digits than its factorization.

90572858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561632.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 90572858 is about 9516.9773562828. The cubic root of 90572858 is about 449.0892823975.

The spelling of 90572858 in words is "ninety million, five hundred seventy-two thousand, eight hundred fifty-eight".