6680393 has 4 divisors (see below), whose sum is σ = 6793680. Its totient is φ = 6567108.

The previous prime is 6680389. The next prime is 6680413. The reversal of 6680393 is 3930866.

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 6680393 - 2² = 6680389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6682393) 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, 56555 + ... + 56672.

It is an arithmetic number, because the mean of its divisors is an integer number (1698420).

Almost surely, 2^6680393 is an apocalyptic number.

It is an amenable number.

6680393 is a deficient number, since it is larger than the sum of its proper divisors (113287).

6680393 is a wasteful number, since it uses less digits than its factorization.

6680393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113286.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6680393 is about 2584.6456236784. The cubic root of 6680393 is about 188.3362869682.

The spelling of 6680393 in words is "six million, six hundred eighty thousand, three hundred ninety-three".