90566418 has 8 divisors (see below), whose sum is σ = 181132848. Its totient is φ = 30188804.

The previous prime is 90566389. The next prime is 90566447. The reversal of 90566418 is 81466509.

It is an interprime number because it is at equal distance from previous prime (90566389) and next prime (90566447).

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

90566418 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7547196 + ... + 7547207.

It is an arithmetic number, because the mean of its divisors is an integer number (22641606).

Almost surely, 2^90566418 is an apocalyptic number.

90566418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90566418 is a wasteful number, since it uses less digits than its factorization.

90566418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15094408.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 90566418 is about 9516.6390075488. The cubic root of 90566418 is about 449.0786382834.

Subtracting from 90566418 its reverse (81466509), we obtain a palindrome (9099909).

The spelling of 90566418 in words is "ninety million, five hundred sixty-six thousand, four hundred eighteen".