870897 has 8 divisors (see below), whose sum is σ = 1180480. Its totient is φ = 570960.

The previous prime is 870889. The next prime is 870901. The reversal of 870897 is 798078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 870897 - 2³ = 870889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2197 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (147560).

2⁸⁷⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

870897 is a deficient number, since it is larger than the sum of its proper divisors (309583).

870897 is a wasteful number, since it uses less digits than its factorization.

870897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 870897 is about 933.2186239033. The cubic root of 870897 is about 95.4968247256.

The spelling of 870897 in words is "eight hundred seventy thousand, eight hundred ninety-seven".