56790 has 24 divisors (see below), whose sum is σ = 147888. Its totient is φ = 15120.

The previous prime is 56783. The next prime is 56807. The reversal of 56790 is 9765.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable 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 11 ways as a sum of consecutive naturals, for example, 226 + ... + 405.

It is an arithmetic number, because the mean of its divisors is an integer number (6162).

2⁵⁶⁷⁹⁰ is an apocalyptic number.

56790 is an abundant number, since it is smaller than the sum of its proper divisors (91098).

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 (73944).

56790 is a wasteful number, since it uses less digits than its factorization.

56790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 56790 is about 238.3065252988. The cubic root of 56790 is about 38.4376908577.

The spelling of 56790 in words is "fifty-six thousand, seven hundred ninety".