3072796021 has 16 divisors (see below), whose sum is σ = 3225291264. Its totient is φ = 2921943024.

The previous prime is 3072795997. The next prime is 3072796057. The reversal of 3072796021 is 1206972703.

It is a cyclic number.

It is not a de Polignac number, because 3072796021 - 2⁵ = 3072795989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072796421) 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, 5617270 + ... + 5617816.

It is an arithmetic number, because the mean of its divisors is an integer number (201580704).

Almost surely, 2^3072796021 is an apocalyptic number.

It is an amenable number.

3072796021 is a deficient number, since it is larger than the sum of its proper divisors (152495243).

3072796021 is a wasteful number, since it uses less digits than its factorization.

3072796021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3072796021 is about 55432.8063604938. The cubic root of 3072796021 is about 1453.8220247199.

The spelling of 3072796021 in words is "three billion, seventy-two million, seven hundred ninety-six thousand, twenty-one".