897173 has 4 divisors (see below), whose sum is σ = 928140. Its totient is φ = 866208.

The previous prime is 897163. The next prime is 897191. The reversal of 897173 is 371798.

897173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268324 + 628849 = 518^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 897173 - 2⁴ = 897157 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 (897103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15440 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (232035).

2⁸⁹⁷¹⁷³ is an apocalyptic number.

It is an amenable number.

897173 is a deficient number, since it is larger than the sum of its proper divisors (30967).

897173 is a wasteful number, since it uses less digits than its factorization.

897173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30966.

The product of its digits is 10584, while the sum is 35.

The square root of 897173 is about 947.1921663527. The cubic root of 897173 is about 96.4477421157.

The spelling of 897173 in words is "eight hundred ninety-seven thousand, one hundred seventy-three".