90399585 has 16 divisors (see below), whose sum is σ = 144760320. Its totient is φ = 48172800.

The previous prime is 90399581. The next prime is 90399601. The reversal of 90399585 is 58599309.

It is not a de Polignac number, because 90399585 - 2² = 90399581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90399581) 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, 27721 + ... + 30809.

It is an arithmetic number, because the mean of its divisors is an integer number (9047520).

Almost surely, 2^90399585 is an apocalyptic number.

It is an amenable number.

90399585 is a deficient number, since it is larger than the sum of its proper divisors (54360735).

90399585 is a wasteful number, since it uses less digits than its factorization.

90399585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 90399585 is about 9507.8696352022. The cubic root of 90399585 is about 448.8027185422.

The spelling of 90399585 in words is "ninety million, three hundred ninety-nine thousand, five hundred eighty-five".