90386166 has 32 divisors (see below), whose sum is σ = 195729408. Its totient is φ = 27660960.

The previous prime is 90386141. The next prime is 90386167. The reversal of 90386166 is 66168309.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90386167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11865 + ... + 17931.

It is an arithmetic number, because the mean of its divisors is an integer number (6116544).

Almost surely, 2^90386166 is an apocalyptic number.

90386166 is an abundant number, since it is smaller than the sum of its proper divisors (105343242).

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

90386166 is a wasteful number, since it uses less digits than its factorization.

90386166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 90386166 is about 9507.1639304264. The cubic root of 90386166 is about 448.7805105431.

The spelling of 90386166 in words is "ninety million, three hundred eighty-six thousand, one hundred sixty-six".