56684663 has 8 divisors (see below), whose sum is σ = 65880960. Its totient is φ = 47763000.

The previous prime is 56684651. The next prime is 56684669. The reversal of 56684663 is 36648665.

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

It is a cyclic number.

It is not a de Polignac number, because 56684663 - 2¹⁰ = 56683639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56684669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68213 + ... + 69038.

It is an arithmetic number, because the mean of its divisors is an integer number (8235120).

Almost surely, 2^56684663 is an apocalyptic number.

56684663 is a deficient number, since it is larger than the sum of its proper divisors (9196297).

56684663 is a wasteful number, since it uses less digits than its factorization.

56684663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137317.

The product of its digits is 622080, while the sum is 44.

The square root of 56684663 is about 7528.9217687528. The cubic root of 56684663 is about 384.1391074966.

The spelling of 56684663 in words is "fifty-six million, six hundred eighty-four thousand, six hundred sixty-three".