6687946 has 8 divisors (see below), whose sum is σ = 10059264. Its totient is φ = 3334860.

The previous prime is 6687931. The next prime is 6687973. The reversal of 6687946 is 6497866.

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

It is a junction number, because it is equal to n+sod(n) for n = 6687896 and 6687905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3600 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1257408).

Almost surely, 2^6687946 is an apocalyptic number.

6687946 is a deficient number, since it is larger than the sum of its proper divisors (3371318).

6687946 is a wasteful number, since it uses less digits than its factorization.

6687946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9116.

The product of its digits is 435456, while the sum is 46.

The square root of 6687946 is about 2586.1063396543. The cubic root of 6687946 is about 188.4072392913.

The spelling of 6687946 in words is "six million, six hundred eighty-seven thousand, nine hundred forty-six".