870036 has 12 divisors (see below), whose sum is σ = 2030112. Its totient is φ = 290008.

The previous prime is 870031. The next prime is 870047. The reversal of 870036 is 630078.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 869988 and 870015.

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 870036.

It is not an unprimeable number, because it can be changed into a prime (870031) by changing a digit.

870036 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 3 ways as a sum of consecutive naturals, for example, 36240 + ... + 36263.

It is an arithmetic number, because the mean of its divisors is an integer number (169176).

2⁸⁷⁰⁰³⁶ is an apocalyptic number.

It is an amenable number.

870036 is an abundant number, since it is smaller than the sum of its proper divisors (1160076).

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

870036 is a wasteful number, since it uses less digits than its factorization.

870036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72510 (or 72508 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 870036 is about 932.7572031349. The cubic root of 870036 is about 95.4653438206.

The spelling of 870036 in words is "eight hundred seventy thousand, thirty-six".