56870 has 24 divisors (see below), whose sum is σ = 114912. Its totient is φ = 20240.

The previous prime is 56857. The next prime is 56873. The reversal of 56870 is 7865.

It is a super-3 number, since 3×56870³ = 551786333109000, which contains 333 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56873) by changing a digit.

56870 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 11 ways as a sum of consecutive naturals, for example, 1187 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (4788).

2⁵⁶⁸⁷⁰ is an apocalyptic number.

56870 is an abundant number, since it is smaller than the sum of its proper divisors (58042).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57456).

56870 is a wasteful number, since it uses less digits than its factorization.

56870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 56870 is about 238.4743172755. The cubic root of 56870 is about 38.4557314310.

The spelling of 56870 in words is "fifty-six thousand, eight hundred seventy".