3093640021 has 8 divisors (see below), whose sum is σ = 3263598080. Its totient is φ = 2924395488.

The previous prime is 3093640019. The next prime is 3093640073. The reversal of 3093640021 is 1200463903.

3093640021 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 3093640021 - 2¹ = 3093640019 is a prime.

It is the 55621-st Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3093640321) by changing a digit.

It is a nontrivial repunit in base 55620.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169461 + ... + 186826.

It is an arithmetic number, because the mean of its divisors is an integer number (407949760).

Almost surely, 2^3093640021 is an apocalyptic number.

It is an amenable number.

3093640021 is a deficient number, since it is larger than the sum of its proper divisors (169958059).

3093640021 is a wasteful number, since it uses less digits than its factorization.

3093640021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356763.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3093640021 is about 55620.5000067421. The cubic root of 3093640021 is about 1457.1019043446.

The spelling of 3093640021 in words is "three billion, ninety-three million, six hundred forty thousand, twenty-one".