870280 has 16 divisors (see below), whose sum is σ = 1958220. Its totient is φ = 348096.

The previous prime is 870271. The next prime is 870283. The reversal of 870280 is 82078.

It can be written as a sum of positive squares in 2 ways, for example, as 842724 + 27556 = 918^2 + 166^2 .

It is not an unprimeable number, because it can be changed into a prime (870283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10839 + ... + 10918.

2⁸⁷⁰²⁸⁰ is an apocalyptic number.

It is an amenable number.

870280 is an abundant number, since it is smaller than the sum of its proper divisors (1087940).

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

870280 is a wasteful number, since it uses less digits than its factorization.

870280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21768 (or 21764 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 870280 is about 932.8879889890. The cubic root of 870280 is about 95.4742673467.

The spelling of 870280 in words is "eight hundred seventy thousand, two hundred eighty".