870163 has 4 divisors (see below), whose sum is σ = 994480. Its totient is φ = 745848.

The previous prime is 870161. The next prime is 870169. The reversal of 870163 is 361078.

870163 is nontrivially palindromic in base 8.

870163 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, and also an emirpimes, since its reverse is a distinct semiprime: 361078 = 2 ⋅180539.

It is a cyclic number.

It is not a de Polignac number, because 870163 - 2¹ = 870161 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870161) 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, 62148 + ... + 62161.

It is an arithmetic number, because the mean of its divisors is an integer number (248620).

2⁸⁷⁰¹⁶³ is an apocalyptic number.

870163 is a deficient number, since it is larger than the sum of its proper divisors (124317).

870163 is a wasteful number, since it uses less digits than its factorization.

870163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124316.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 870163 is about 932.8252783882. The cubic root of 870163 is about 95.4699886510.

The spelling of 870163 in words is "eight hundred seventy thousand, one hundred sixty-three".