897775 has 6 divisors (see below), whose sum is σ = 1113272. Its totient is φ = 718200.

The previous prime is 897751. The next prime is 897779. The reversal of 897775 is 577798.

It is not a de Polignac number, because 897775 - 2⁷ = 897647 is a prime.

It is a Duffinian number.

897775 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17931 + ... + 17980.

2⁸⁹⁷⁷⁷⁵ is an apocalyptic number.

897775 is a deficient number, since it is larger than the sum of its proper divisors (215497).

897775 is a wasteful number, since it uses less digits than its factorization.

897775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35921 (or 35916 counting only the distinct ones).

The product of its digits is 123480, while the sum is 43.

The square root of 897775 is about 947.5098944074. The cubic root of 897775 is about 96.4693093271.

The spelling of 897775 in words is "eight hundred ninety-seven thousand, seven hundred seventy-five".