90118606 has 16 divisors (see below), whose sum is σ = 141191280. Its totient is φ = 43096320.

The previous prime is 90118601. The next prime is 90118621. The reversal of 90118606 is 60681109.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90118601) 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, 5955 + ... + 14686.

It is an arithmetic number, because the mean of its divisors is an integer number (8824455).

Almost surely, 2^90118606 is an apocalyptic number.

90118606 is a deficient number, since it is larger than the sum of its proper divisors (51072674).

90118606 is a wasteful number, since it uses less digits than its factorization.

90118606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20739.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 90118606 is about 9493.0820074410. The cubic root of 90118606 is about 448.3372480537.

The spelling of 90118606 in words is "ninety million, one hundred eighteen thousand, six hundred six".