90688167 has 10 divisors (see below), whose sum is σ = 135472568. Its totient is φ = 60458724.

The previous prime is 90688139. The next prime is 90688177. The reversal of 90688167 is 76188609.

It is a happy number.

It is not a de Polignac number, because 90688167 - 2¹¹ = 90686119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90688127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 559723 + ... + 559884.

Almost surely, 2^90688167 is an apocalyptic number.

90688167 is a deficient number, since it is larger than the sum of its proper divisors (44784401).

90688167 is a wasteful number, since it uses less digits than its factorization.

90688167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119619 (or 1119610 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 90688167 is about 9523.0334977884. The cubic root of 90688167 is about 449.2797812482.

The spelling of 90688167 in words is "ninety million, six hundred eighty-eight thousand, one hundred sixty-seven".