897975171 has 24 divisors (see below), whose sum is σ = 1347964800. Its totient is φ = 575424000.

The previous prime is 897975119. The next prime is 897975193. The reversal of 897975171 is 171579798.

It is not a de Polignac number, because 897975171 - 2²⁶ = 830866307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897975271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30771 + ... + 52371.

It is an arithmetic number, because the mean of its divisors is an integer number (56165200).

Almost surely, 2^897975171 is an apocalyptic number.

897975171 is a deficient number, since it is larger than the sum of its proper divisors (449989629).

897975171 is a wasteful number, since it uses less digits than its factorization.

897975171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21787 (or 21784 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 54.

The square root of 897975171 is about 29966.2338474490. The cubic root of 897975171 is about 964.7647850391.

The spelling of 897975171 in words is "eight hundred ninety-seven million, nine hundred seventy-five thousand, one hundred seventy-one".