3420056779 has 16 divisors (see below), whose sum is σ = 3613599360. Its totient is φ = 3232535040.

The previous prime is 3420056771. The next prime is 3420056819. The reversal of 3420056779 is 9776500243.

3420056779 is nontrivially palindromic in base 8.

It is a cyclic number.

It is not a de Polignac number, because 3420056779 - 2³ = 3420056771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3420056771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357847 + ... + 367279.

It is an arithmetic number, because the mean of its divisors is an integer number (225849960).

Almost surely, 2^3420056779 is an apocalyptic number.

3420056779 is a deficient number, since it is larger than the sum of its proper divisors (193542581).

3420056779 is a wasteful number, since it uses less digits than its factorization.

3420056779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 3420056779 is about 58481.2515170460. The cubic root of 3420056779 is about 1506.6455922917.

The spelling of 3420056779 in words is "three billion, four hundred twenty million, fifty-six thousand, seven hundred seventy-nine".