90258959 has 8 divisors (see below), whose sum is σ = 103689120. Its totient is φ = 76962816.

The previous prime is 90258937. The next prime is 90258977. The reversal of 90258959 is 95985209.

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

It is not a de Polignac number, because 90258959 - 2¹² = 90254863 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 (90258979) 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, 32054 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (12961140).

Almost surely, 2^90258959 is an apocalyptic number.

90258959 is a deficient number, since it is larger than the sum of its proper divisors (13430161).

90258959 is a wasteful number, since it uses less digits than its factorization.

90258959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67009.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 90258959 is about 9500.4715146144. The cubic root of 90258959 is about 448.5698779236.

The spelling of 90258959 in words is "ninety million, two hundred fifty-eight thousand, nine hundred fifty-nine".