56673977 has 4 divisors (see below), whose sum is σ = 57356880. Its totient is φ = 55991076.

The previous prime is 56673949. The next prime is 56673997. The reversal of 56673977 is 77937665.

56673977 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56673977 - 2⁶ = 56673913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56673997) 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, 341327 + ... + 341492.

It is an arithmetic number, because the mean of its divisors is an integer number (14339220).

Almost surely, 2^56673977 is an apocalyptic number.

It is an amenable number.

56673977 is a deficient number, since it is larger than the sum of its proper divisors (682903).

56673977 is an equidigital number, since it uses as much as digits as its factorization.

56673977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682902.

The product of its digits is 1666980, while the sum is 50.

The square root of 56673977 is about 7528.2120719331. The cubic root of 56673977 is about 384.1149671133.

The spelling of 56673977 in words is "fifty-six million, six hundred seventy-three thousand, nine hundred seventy-seven".