6331685 has 4 divisors (see below), whose sum is σ = 7598028. Its totient is φ = 5065344.

The previous prime is 6331679. The next prime is 6331691. The reversal of 6331685 is 5861336.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6331679) and next prime (6331691).

It can be written as a sum of positive squares in 2 ways, for example, as 1014049 + 5317636 = 1007^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 6331685 - 2⁴ = 6331669 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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, 633164 + ... + 633173.

It is an arithmetic number, because the mean of its divisors is an integer number (1899507).

Almost surely, 2^6331685 is an apocalyptic number.

It is an amenable number.

6331685 is a deficient number, since it is larger than the sum of its proper divisors (1266343).

6331685 is a wasteful number, since it uses less digits than its factorization.

6331685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266342.

The product of its digits is 12960, while the sum is 32.

The square root of 6331685 is about 2516.2839664871. The cubic root of 6331685 is about 185.0005843663. Note that the first 3 decimals are identical.

The spelling of 6331685 in words is "six million, three hundred thirty-one thousand, six hundred eighty-five".