56986779 has 8 divisors (see below), whose sum is σ = 76018752. Its totient is φ = 37973000.

The previous prime is 56986777. The next prime is 56986799. The reversal of 56986779 is 97768965.

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 56986779 - 2¹ = 56986777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56986777) 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, 6832 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (9502344).

Almost surely, 2^56986779 is an apocalyptic number.

56986779 is a deficient number, since it is larger than the sum of its proper divisors (19031973).

56986779 is a wasteful number, since it uses less digits than its factorization.

56986779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097.

The product of its digits is 5715360, while the sum is 57.

The square root of 56986779 is about 7548.9588023780. The cubic root of 56986779 is about 384.8203558365.

The spelling of 56986779 in words is "fifty-six million, nine hundred eighty-six thousand, seven hundred seventy-nine".