56879766 has 32 divisors (see below), whose sum is σ = 127663200. Its totient is φ = 18770400.

The previous prime is 56879747. The next prime is 56879783. The reversal of 56879766 is 66797865.

It is a happy number.

56879766 is a `hidden beast` number, since 568 + 7 + 9 + 76 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240 + ... + 10668.

It is an arithmetic number, because the mean of its divisors is an integer number (3989475).

Almost surely, 2^56879766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56879766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63831600).

56879766 is an abundant number, since it is smaller than the sum of its proper divisors (70783434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56879766 is a wasteful number, since it uses less digits than its factorization.

56879766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541 (or 10535 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 56879766 is about 7541.8675406029. The cubic root of 56879766 is about 384.5793257497.

The spelling of 56879766 in words is "fifty-six million, eight hundred seventy-nine thousand, seven hundred sixty-six".