870612 has 12 divisors (see below), whose sum is σ = 2031456. Its totient is φ = 290200.

The previous prime is 870601. The next prime is 870613. The reversal of 870612 is 216078.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870613) by changing a digit.

870612 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 3 ways as a sum of consecutive naturals, for example, 36264 + ... + 36287.

It is an arithmetic number, because the mean of its divisors is an integer number (169288).

2⁸⁷⁰⁶¹² is an apocalyptic number.

It is an amenable number.

870612 is an abundant number, since it is smaller than the sum of its proper divisors (1160844).

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

870612 is a wasteful number, since it uses less digits than its factorization.

870612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72558 (or 72556 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 870612 is about 933.0659140704. The cubic root of 870612 is about 95.4864065153.

The spelling of 870612 in words is "eight hundred seventy thousand, six hundred twelve".