3009729021 has 8 divisors (see below), whose sum is σ = 4321662240. Its totient is φ = 1852140912.

The previous prime is 3009729007. The next prime is 3009729049. The reversal of 3009729021 is 1209279003.

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

It is not a de Polignac number, because 3009729021 - 2⁷ = 3009728893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3009729071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38586231 + ... + 38586308.

It is an arithmetic number, because the mean of its divisors is an integer number (540207780).

Almost surely, 2^3009729021 is an apocalyptic number.

It is an amenable number.

3009729021 is a deficient number, since it is larger than the sum of its proper divisors (1311933219).

3009729021 is a wasteful number, since it uses less digits than its factorization.

3009729021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77172555.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 3009729021 is about 54860.9972658172. The cubic root of 3009729021 is about 1443.8069631242.

The spelling of 3009729021 in words is "three billion, nine million, seven hundred twenty-nine thousand, twenty-one".