870084 has 18 divisors (see below), whose sum is σ = 2199470. Its totient is φ = 290016.

The previous prime is 870083. The next prime is 870097. The reversal of 870084 is 480078.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 5184 = 930^2 + 72^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870084.

It is not an unprimeable number, because it can be changed into a prime (870083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12049 + ... + 12120.

2⁸⁷⁰⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

870084 is an abundant number, since it is smaller than the sum of its proper divisors (1329386).

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

870084 is a wasteful number, since it uses less digits than its factorization.

870084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24179 (or 24174 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 870084 is about 932.7829329485. The cubic root of 870084 is about 95.4670994002.

The spelling of 870084 in words is "eight hundred seventy thousand, eighty-four".