3045908721 has 8 divisors (see below), whose sum is σ = 4116844960. Its totient is φ = 2002789152.

The previous prime is 3045908707. The next prime is 3045908771. The reversal of 3045908721 is 1278095403.

3045908721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3045908721 - 2¹⁷ = 3045777649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3045908721.

It is not an unprimeable number, because it can be changed into a prime (3045908771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6953911 + ... + 6954348.

It is an arithmetic number, because the mean of its divisors is an integer number (514605620).

Almost surely, 2^3045908721 is an apocalyptic number.

It is an amenable number.

3045908721 is a deficient number, since it is larger than the sum of its proper divisors (1070936239).

3045908721 is a wasteful number, since it uses less digits than its factorization.

3045908721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13908335.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 3045908721 is about 55189.7519563188. The cubic root of 3045908721 is about 1449.5692293110.

The spelling of 3045908721 in words is "three billion, forty-five million, nine hundred eight thousand, seven hundred twenty-one".