56787677 has 4 divisors (see below), whose sum is σ = 57750240. Its totient is φ = 55825116.

The previous prime is 56787673. The next prime is 56787719. The reversal of 56787677 is 77678765.

56787677 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 56787677 - 2² = 56787673 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 (56787671) 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, 481193 + ... + 481310.

It is an arithmetic number, because the mean of its divisors is an integer number (14437560).

Almost surely, 2^56787677 is an apocalyptic number.

It is an amenable number.

56787677 is a deficient number, since it is larger than the sum of its proper divisors (962563).

56787677 is an equidigital number, since it uses as much as digits as its factorization.

56787677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962562.

The product of its digits is 3457440, while the sum is 53.

The square root of 56787677 is about 7535.7598820557. The cubic root of 56787677 is about 384.3716675147.

The spelling of 56787677 in words is "fifty-six million, seven hundred eighty-seven thousand, six hundred seventy-seven".