6680947 has 8 divisors (see below), whose sum is σ = 8222816. Its totient is φ = 5285952.

The previous prime is 6680941. The next prime is 6680959. The reversal of 6680947 is 7490866.

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

It is not a de Polignac number, because 6680947 - 2³ = 6680939 is a prime.

6680947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6680941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36618 + ... + 36799.

It is an arithmetic number, because the mean of its divisors is an integer number (1027852).

Almost surely, 2^6680947 is an apocalyptic number.

6680947 is a deficient number, since it is larger than the sum of its proper divisors (1541869).

6680947 is a wasteful number, since it uses less digits than its factorization.

6680947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73437.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6680947 is about 2584.7527928218. The cubic root of 6680947 is about 188.3414930202.

The spelling of 6680947 in words is "six million, six hundred eighty thousand, nine hundred forty-seven".