6431684 has 12 divisors (see below), whose sum is σ = 12863424. Its totient is φ = 2756424.

The previous prime is 6431683. The next prime is 6431687. The reversal of 6431684 is 4861346.

6431684 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6431684.

It is not an unprimeable number, because it can be changed into a prime (6431681) 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, 114824 + ... + 114879.

It is an arithmetic number, because the mean of its divisors is an integer number (1071952).

Almost surely, 2^6431684 is an apocalyptic number.

It is an amenable number.

6431684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6431684 is a wasteful number, since it uses less digits than its factorization.

6431684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229714 (or 229712 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 6431684 is about 2536.0764972690. The cubic root of 6431684 is about 185.9694326768.

It can be divided in two parts, 64 and 31684, that multiplied together give a square (2027776 = 1424²).

The spelling of 6431684 in words is "six million, four hundred thirty-one thousand, six hundred eighty-four".