870772 has 24 divisors (see below), whose sum is σ = 1761984. Its totient is φ = 368832.

The previous prime is 870743. The next prime is 870773. The reversal of 870772 is 277078.

870772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870773) 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, 3723 + ... + 3949.

It is an arithmetic number, because the mean of its divisors is an integer number (73416).

2⁸⁷⁰⁷⁷² is an apocalyptic number.

It is an amenable number.

870772 is an abundant number, since it is smaller than the sum of its proper divisors (891212).

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

870772 is a wasteful number, since it uses less digits than its factorization.

870772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 870772 is about 933.1516489832. The cubic root of 870772 is about 95.4922556150.

The spelling of 870772 in words is "eight hundred seventy thousand, seven hundred seventy-two".