120656779 has 8 divisors (see below), whose sum is σ = 124493760. Its totient is φ = 116877696.

The previous prime is 120656771. The next prime is 120656807. The reversal of 120656779 is 977656021.

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 120656779 - 2³ = 120656771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120656771) 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 7 ways as a sum of consecutive naturals, for example, 10222 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (15561720).

Almost surely, 2^120656779 is an apocalyptic number.

120656779 is a deficient number, since it is larger than the sum of its proper divisors (3836981).

120656779 is an equidigital number, since it uses as much as digits as its factorization.

120656779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28949.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 120656779 is about 10984.3879665642. The cubic root of 120656779 is about 494.1406427504.

The spelling of 120656779 in words is "one hundred twenty million, six hundred fifty-six thousand, seven hundred seventy-nine".