56766979 has 2 divisors, whose sum is σ = 56766980. Its totient is φ = 56766978.

The previous prime is 56766977. The next prime is 56767033. The reversal of 56766979 is 97966765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56766979 - 2¹ = 56766977 is a prime.

Together with 56766977, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56766973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28383489 + 28383490.

It is an arithmetic number, because the mean of its divisors is an integer number (28383490).

Almost surely, 2^56766979 is an apocalyptic number.

56766979 is a deficient number, since it is larger than the sum of its proper divisors (1).

56766979 is an equidigital number, since it uses as much as digits as its factorization.

56766979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 55.

The square root of 56766979 is about 7534.3864381912. The cubic root of 56766979 is about 384.3249631828.

The spelling of 56766979 in words is "fifty-six million, seven hundred sixty-six thousand, nine hundred seventy-nine".