90166827 has 16 divisors (see below), whose sum is σ = 128116512. Its totient is φ = 56209920.

The previous prime is 90166823. The next prime is 90166859. The reversal of 90166827 is 72866109.

It is not a de Polignac number, because 90166827 - 2² = 90166823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90166823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (8007282).

Almost surely, 2^90166827 is an apocalyptic number.

90166827 is a deficient number, since it is larger than the sum of its proper divisors (37949685).

90166827 is a wasteful number, since it uses less digits than its factorization.

90166827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 90166827 is about 9495.6214646541. The cubic root of 90166827 is about 448.4171997844.

The spelling of 90166827 in words is "ninety million, one hundred sixty-six thousand, eight hundred twenty-seven".