90118086 has 16 divisors (see below), whose sum is σ = 180390144. Its totient is φ = 30013704.

The previous prime is 90118081. The next prime is 90118151. The reversal of 90118086 is 68081109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90118081) 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, 2055 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (11274384).

Almost surely, 2^90118086 is an apocalyptic number.

90118086 is an abundant number, since it is smaller than the sum of its proper divisors (90272058).

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

90118086 is a wasteful number, since it uses less digits than its factorization.

90118086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 90118086 is about 9493.0546190360. The cubic root of 90118086 is about 448.3363857241.

The spelling of 90118086 in words is "ninety million, one hundred eighteen thousand, eighty-six".