90087573 has 16 divisors (see below), whose sum is σ = 132713856. Its totient is φ = 54067200.

The previous prime is 90087559. The next prime is 90087583. The reversal of 90087573 is 37578009.

It is not a de Polignac number, because 90087573 - 2⁵ = 90087541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90087523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37228 + ... + 39573.

It is an arithmetic number, because the mean of its divisors is an integer number (8294616).

Almost surely, 2^90087573 is an apocalyptic number.

It is an amenable number.

90087573 is a deficient number, since it is larger than the sum of its proper divisors (42626283).

90087573 is a wasteful number, since it uses less digits than its factorization.

90087573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76844.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 90087573 is about 9491.4473606505. The cubic root of 90087573 is about 448.2857794104.

The spelling of 90087573 in words is "ninety million, eighty-seven thousand, five hundred seventy-three".