6686432 has 24 divisors (see below), whose sum is σ = 13237056. Its totient is φ = 3324672.

The previous prime is 6686419. The next prime is 6686437. The reversal of 6686432 is 2346866.

It is a junction number, because it is equal to n+sod(n) for n = 6686392 and 6686401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6686437) 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, 6668 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (551544).

Almost surely, 2^6686432 is an apocalyptic number.

It is an amenable number.

6686432 is a deficient number, since it is larger than the sum of its proper divisors (6550624).

6686432 is a wasteful number, since it uses less digits than its factorization.

6686432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1162 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 6686432 is about 2585.8136050381. The cubic root of 6686432 is about 188.3930211697.

The spelling of 6686432 in words is "six million, six hundred eighty-six thousand, four hundred thirty-two".