56978 has 8 divisors (see below), whose sum is σ = 88320. Its totient is φ = 27540.

The previous prime is 56963. The next prime is 56983. The reversal of 56978 is 87965.

56978 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

56978 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, 398 + ... + 521.

It is an arithmetic number, because the mean of its divisors is an integer number (11040).

2⁵⁶⁹⁷⁸ is an apocalyptic number.

56978 is a deficient number, since it is larger than the sum of its proper divisors (31342).

56978 is a wasteful number, since it uses less digits than its factorization.

56978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 15120, while the sum is 35.

The square root of 56978 is about 238.7006493498. The cubic root of 56978 is about 38.4800593876.

The spelling of 56978 in words is "fifty-six thousand, nine hundred seventy-eight".