870072 has 32 divisors (see below), whose sum is σ = 2486400. Its totient is φ = 248544.

The previous prime is 870059. The next prime is 870083. The reversal of 870072 is 270078.

870072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

870072 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 7 ways as a sum of consecutive naturals, for example, 2422 + ... + 2757.

It is an arithmetic number, because the mean of its divisors is an integer number (77700).

2⁸⁷⁰⁰⁷² is an apocalyptic number.

It is an amenable number.

870072 is an abundant number, since it is smaller than the sum of its proper divisors (1616328).

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

870072 is a wasteful number, since it uses less digits than its factorization.

870072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 870072 is about 932.7765005616. The cubic root of 870072 is about 95.4666605114.

The spelling of 870072 in words is "eight hundred seventy thousand, seventy-two".