90430585 has 16 divisors (see below), whose sum is σ = 126660096. Its totient is φ = 60689088.

The previous prime is 90430583. The next prime is 90430597. The reversal of 90430585 is 58503409.

It is a cyclic number.

It is not a de Polignac number, because 90430585 - 2¹ = 90430583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90430585.

It is not an unprimeable number, because it can be changed into a prime (90430583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25842 + ... + 29131.

It is an arithmetic number, because the mean of its divisors is an integer number (7916256).

Almost surely, 2^90430585 is an apocalyptic number.

It is an amenable number.

90430585 is a deficient number, since it is larger than the sum of its proper divisors (36229511).

90430585 is a wasteful number, since it uses less digits than its factorization.

90430585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55032.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 90430585 is about 9509.4997239602. The cubic root of 90430585 is about 448.8540141104.

The spelling of 90430585 in words is "ninety million, four hundred thirty thousand, five hundred eighty-five".