3099474721 has 16 divisors (see below), whose sum is σ = 3603563008. Its totient is φ = 2610792000.

The previous prime is 3099474619. The next prime is 3099474757. The reversal of 3099474721 is 1274749903.

It is a cyclic number.

It is not a de Polignac number, because 3099474721 - 2⁷ = 3099474593 is a prime.

It is a super-2 number, since 2×3099474721² = 19213487092236055682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3099474761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605071 + ... + 610171.

It is an arithmetic number, because the mean of its divisors is an integer number (225222688).

Almost surely, 2^3099474721 is an apocalyptic number.

It is an amenable number.

3099474721 is a deficient number, since it is larger than the sum of its proper divisors (504088287).

3099474721 is a wasteful number, since it uses less digits than its factorization.

3099474721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 3099474721 is about 55672.9262837872. The cubic root of 3099474721 is about 1458.0173753498.

The spelling of 3099474721 in words is "three billion, ninety-nine million, four hundred seventy-four thousand, seven hundred twenty-one".