90354589 has 4 divisors (see below), whose sum is σ = 97304956. Its totient is φ = 83404224.

The previous prime is 90354527. The next prime is 90354601. The reversal of 90354589 is 98545309.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30802500 + 59552089 = 5550^2 + 7717^2 .

It is a cyclic number.

It is not a de Polignac number, because 90354589 - 2¹⁵ = 90321821 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 (90354389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475164 + ... + 3475189.

It is an arithmetic number, because the mean of its divisors is an integer number (24326239).

Almost surely, 2^90354589 is an apocalyptic number.

It is an amenable number.

90354589 is a deficient number, since it is larger than the sum of its proper divisors (6950367).

90354589 is a wasteful number, since it uses less digits than its factorization.

90354589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950366.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 90354589 is about 9505.5030903156. The cubic root of 90354589 is about 448.7282429842.

The spelling of 90354589 in words is "ninety million, three hundred fifty-four thousand, five hundred eighty-nine".