897871 has 4 divisors (see below), whose sum is σ = 966952. Its totient is φ = 828792.

The previous prime is 897847. The next prime is 897877. The reversal of 897871 is 178798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178798 = 2 ⋅89399.

It is a cyclic number.

It is not a de Polignac number, because 897871 - 2⁹ = 897359 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34521 + ... + 34546.

It is an arithmetic number, because the mean of its divisors is an integer number (241738).

2⁸⁹⁷⁸⁷¹ is an apocalyptic number.

897871 is a deficient number, since it is larger than the sum of its proper divisors (69081).

897871 is a wasteful number, since it uses less digits than its factorization.

897871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69080.

The product of its digits is 28224, while the sum is 40.

The square root of 897871 is about 947.5605521548. The cubic root of 897871 is about 96.4727477252.

It can be divided in two parts, 8 and 97871, that added together give a palindrome (97879).

The spelling of 897871 in words is "eight hundred ninety-seven thousand, eight hundred seventy-one".