56684873 has 4 divisors (see below), whose sum is σ = 64782720. Its totient is φ = 48587028.

The previous prime is 56684869. The next prime is 56684893. The reversal of 56684873 is 37848665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56684873 - 2² = 56684869 is a prime.

It is a super-2 number, since 2×56684873² = 6426349654052258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56684843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4048913 + ... + 4048926.

It is an arithmetic number, because the mean of its divisors is an integer number (16195680).

Almost surely, 2^56684873 is an apocalyptic number.

It is an amenable number.

56684873 is a deficient number, since it is larger than the sum of its proper divisors (8097847).

56684873 is an equidigital number, since it uses as much as digits as its factorization.

56684873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8097846.

The product of its digits is 967680, while the sum is 47.

The square root of 56684873 is about 7528.9357149600. The cubic root of 56684873 is about 384.1395818702.

The spelling of 56684873 in words is "fifty-six million, six hundred eighty-four thousand, eight hundred seventy-three".