6931668 has 12 divisors (see below), whose sum is σ = 16173920. Its totient is φ = 2310552.

The previous prime is 6931657. The next prime is 6931679. The reversal of 6931668 is 8661396.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6931657) and next prime (6931679).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288808 + ... + 288831.

Almost surely, 2^6931668 is an apocalyptic number.

It is an amenable number.

6931668 is an abundant number, since it is smaller than the sum of its proper divisors (9242252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6931668 is a wasteful number, since it uses less digits than its factorization.

6931668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577646 (or 577644 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 6931668 is about 2632.8061075590. The cubic root of 6931668 is about 190.6686322410.

The spelling of 6931668 in words is "six million, nine hundred thirty-one thousand, six hundred sixty-eight".