56787679 has 8 divisors (see below), whose sum is σ = 61263440. Its totient is φ = 52327296.

The previous prime is 56787673. The next prime is 56787719. The reversal of 56787679 is 97678765.

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 56787679 - 2³ = 56787671 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4519 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (7657930).

Almost surely, 2^56787679 is an apocalyptic number.

56787679 is a deficient number, since it is larger than the sum of its proper divisors (4475761).

56787679 is a wasteful number, since it uses less digits than its factorization.

56787679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689.

The product of its digits is 4445280, while the sum is 55.

The square root of 56787679 is about 7535.7600147563. The cubic root of 56787679 is about 384.3716720271.

The spelling of 56787679 in words is "fifty-six million, seven hundred eighty-seven thousand, six hundred seventy-nine".