6747383921 has 4 divisors (see below), whose sum is σ = 6777641472. Its totient is φ = 6717126372.

The previous prime is 6747383893. The next prime is 6747383927. The reversal of 6747383921 is 1293837476.

6747383921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6747383921 - 2³⁰ = 5673642097 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 6747383921.

It is not an unprimeable number, because it can be changed into a prime (6747383927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15128441 + ... + 15128886.

It is an arithmetic number, because the mean of its divisors is an integer number (1694410368).

Almost surely, 2^6747383921 is an apocalyptic number.

It is an amenable number.

6747383921 is a deficient number, since it is larger than the sum of its proper divisors (30257551).

6747383921 is a wasteful number, since it uses less digits than its factorization.

6747383921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30257550.

The product of its digits is 1524096, while the sum is 50.

The square root of 6747383921 is about 82142.4611330827. The cubic root of 6747383921 is about 1889.6373912196.

The spelling of 6747383921 in words is "six billion, seven hundred forty-seven million, three hundred eighty-three thousand, nine hundred twenty-one".