90592389 has 6 divisors (see below), whose sum is σ = 130855686. Its totient is φ = 60394920.

The previous prime is 90592367. The next prime is 90592417. The reversal of 90592389 is 98329509.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 10131489 = 8970^2 + 3183^2 .

It is not a de Polignac number, because 90592389 - 2²⁵ = 57037957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90592339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5032902 + ... + 5032919.

It is an arithmetic number, because the mean of its divisors is an integer number (21809281).

Almost surely, 2^90592389 is an apocalyptic number.

It is an amenable number.

90592389 is a deficient number, since it is larger than the sum of its proper divisors (40263297).

90592389 is a wasteful number, since it uses less digits than its factorization.

90592389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065827 (or 10065824 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 90592389 is about 9518.0034145823. The cubic root of 90592389 is about 449.1215603985.

The spelling of 90592389 in words is "ninety million, five hundred ninety-two thousand, three hundred eighty-nine".