90489583 has 8 divisors (see below), whose sum is σ = 92853936. Its totient is φ = 88132800.

The previous prime is 90489563. The next prime is 90489611. The reversal of 90489583 is 38598409.

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

It is a cyclic number.

It is not a de Polignac number, because 90489583 - 2¹⁷ = 90358511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90489563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28548 + ... + 31558.

It is an arithmetic number, because the mean of its divisors is an integer number (11606742).

Almost surely, 2^90489583 is an apocalyptic number.

90489583 is a deficient number, since it is larger than the sum of its proper divisors (2364353).

90489583 is a wasteful number, since it uses less digits than its factorization.

90489583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 90489583 is about 9512.6012740995. The cubic root of 90489583 is about 448.9516054738.

The spelling of 90489583 in words is "ninety million, four hundred eighty-nine thousand, five hundred eighty-three".