3068206921 has 8 divisors (see below), whose sum is σ = 3306864960. Its totient is φ = 2829926352.

The previous prime is 3068206891. The next prime is 3068206961. The reversal of 3068206921 is 1296028603.

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

It is a cyclic number.

It is not a de Polignac number, because 3068206921 - 2²¹ = 3066109769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3068206961) 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 7 ways as a sum of consecutive naturals, for example, 77365 + ... + 110098.

It is an arithmetic number, because the mean of its divisors is an integer number (413358120).

Almost surely, 2^3068206921 is an apocalyptic number.

It is an amenable number.

3068206921 is a deficient number, since it is larger than the sum of its proper divisors (238658039).

3068206921 is a wasteful number, since it uses less digits than its factorization.

3068206921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188735.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3068206921 is about 55391.3975360796. The cubic root of 3068206921 is about 1453.0979221229.

The spelling of 3068206921 in words is "three billion, sixty-eight million, two hundred six thousand, nine hundred twenty-one".