90120589 has 8 divisors (see below), whose sum is σ = 97483680. Its totient is φ = 82819056.

The previous prime is 90120577. The next prime is 90120619. The reversal of 90120589 is 98502109.

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 90120589 - 2⁵ = 90120557 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 (90120529) 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, 12319 + ... + 18220.

It is an arithmetic number, because the mean of its divisors is an integer number (12185460).

Almost surely, 2^90120589 is an apocalyptic number.

It is an amenable number.

90120589 is a deficient number, since it is larger than the sum of its proper divisors (7363091).

90120589 is a wasteful number, since it uses less digits than its factorization.

90120589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30779.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 90120589 is about 9493.1864513450. The cubic root of 90120589 is about 448.3405364839.

It can be divided in two parts, 90120 and 589, that added together give a palindrome (90709).

The spelling of 90120589 in words is "ninety million, one hundred twenty thousand, five hundred eighty-nine".