90211167 has 12 divisors (see below), whose sum is σ = 131035320. Its totient is φ = 59803728.

The previous prime is 90211159. The next prime is 90211171. The reversal of 90211167 is 76111209.

It is not a de Polignac number, because 90211167 - 2³ = 90211159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90211167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90211567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26388 + ... + 29609.

It is an arithmetic number, because the mean of its divisors is an integer number (10919610).

Almost surely, 2^90211167 is an apocalyptic number.

90211167 is a deficient number, since it is larger than the sum of its proper divisors (40824153).

90211167 is a wasteful number, since it uses less digits than its factorization.

90211167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56182 (or 56179 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 90211167 is about 9497.9559379900. The cubic root of 90211167 is about 448.4906915590.

The spelling of 90211167 in words is "ninety million, two hundred eleven thousand, one hundred sixty-seven".