56684623 has 4 divisors (see below), whose sum is σ = 56775088. Its totient is φ = 56594160.

The previous prime is 56684609. The next prime is 56684651. The reversal of 56684623 is 32648665.

It is a happy number.

56684623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56684623 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 (56684603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44286 + ... + 45547.

It is an arithmetic number, because the mean of its divisors is an integer number (14193772).

Almost surely, 2^56684623 is an apocalyptic number.

56684623 is a deficient number, since it is larger than the sum of its proper divisors (90465).

56684623 is an equidigital number, since it uses as much as digits as its factorization.

56684623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90464.

The product of its digits is 207360, while the sum is 40.

The square root of 56684623 is about 7528.9191123295. The cubic root of 56684623 is about 384.1390171396.

The spelling of 56684623 in words is "fifty-six million, six hundred eighty-four thousand, six hundred twenty-three".