870955 has 8 divisors (see below), whose sum is σ = 1050192. Its totient is φ = 693408.

The previous prime is 870953. The next prime is 870967. The reversal of 870955 is 559078.

870955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 870955 - 2¹ = 870953 is a prime.

It is a super-2 number, since 2×870955² = 1517125224050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870955.

It is not an unprimeable number, because it can be changed into a prime (870953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632 + ... + 2098.

It is an arithmetic number, because the mean of its divisors is an integer number (131274).

2⁸⁷⁰⁹⁵⁵ is an apocalyptic number.

870955 is the 467-th decagonal number.

870955 is a deficient number, since it is larger than the sum of its proper divisors (179237).

870955 is a wasteful number, since it uses less digits than its factorization.

870955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 870955 is about 933.2496986338. The cubic root of 870955 is about 95.4989446445.

The spelling of 870955 in words is "eight hundred seventy thousand, nine hundred fifty-five".