870204 has 24 divisors (see below), whose sum is σ = 2050048. Its totient is φ = 287280.

The previous prime is 870197. The next prime is 870211. The reversal of 870204 is 402078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (870197) and next prime (870211).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870204.

It is an unprimeable number.

870204 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239 + ... + 1809.

2⁸⁷⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

870204 is an abundant number, since it is smaller than the sum of its proper divisors (1179844).

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

870204 is a wasteful number, since it uses less digits than its factorization.

870204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 870204 is about 932.8472543777. The cubic root of 870204 is about 95.4714880666.

The spelling of 870204 in words is "eight hundred seventy thousand, two hundred four".