90097171 has 12 divisors (see below), whose sum is σ = 94068000. Its totient is φ = 86286368.

The previous prime is 90097157. The next prime is 90097177. The reversal of 90097171 is 17179009.

It is a happy number.

It is not a de Polignac number, because 90097171 - 2⁷ = 90097043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90097177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124950 + ... + 125668.

It is an arithmetic number, because the mean of its divisors is an integer number (7839000).

Almost surely, 2^90097171 is an apocalyptic number.

90097171 is a deficient number, since it is larger than the sum of its proper divisors (3970829).

90097171 is a wasteful number, since it uses less digits than its factorization.

90097171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 90097171 is about 9491.9529602711. The cubic root of 90097171 is about 448.3016990834.

The spelling of 90097171 in words is "ninety million, ninety-seven thousand, one hundred seventy-one".