870894 has 12 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 290292.

The previous prime is 870889. The next prime is 870901. The reversal of 870894 is 498078.

It is a congruent number.

It is an unprimeable number.

870894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24174 + ... + 24209.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

2⁸⁷⁰⁸⁹⁴ is an apocalyptic number.

870894 is an abundant number, since it is smaller than the sum of its proper divisors (1016082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870894 is a wasteful number, since it uses less digits than its factorization.

870894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48391 (or 48388 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 870894 is about 933.2170165615. The cubic root of 870894 is about 95.4967150721.

Subtracting from 870894 its reverse (498078), we obtain a triangular number (372816 = T₈₆₃).

It can be divided in two parts, 870 and 894, that added together give a square (1764 = 42²).

The spelling of 870894 in words is "eight hundred seventy thousand, eight hundred ninety-four".