90204959 has 8 divisors (see below), whose sum is σ = 98053200. Its totient is φ = 82486656.

The previous prime is 90204953. The next prime is 90204967. The reversal of 90204959 is 95940209.

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 90204959 - 2⁴ = 90204943 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 (90204953) 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, 31034 + ... + 33815.

It is an arithmetic number, because the mean of its divisors is an integer number (12256650).

Almost surely, 2^90204959 is an apocalyptic number.

90204959 is a deficient number, since it is larger than the sum of its proper divisors (7848241).

90204959 is a wasteful number, since it uses less digits than its factorization.

90204959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64969.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90204959 is about 9497.6291252080. The cubic root of 90204959 is about 448.4804034975.

The spelling of 90204959 in words is "ninety million, two hundred four thousand, nine hundred fifty-nine".