6986631 has 8 divisors (see below), whose sum is σ = 9343600. Its totient is φ = 4643712.

The previous prime is 6986627. The next prime is 6986647. The reversal of 6986631 is 1366896.

It is a happy number.

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

It is not a de Polignac number, because 6986631 - 2² = 6986627 is a prime.

It is a super-2 number, since 2×6986631² = 97626025460322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6986631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2290 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (1167950).

Almost surely, 2^6986631 is an apocalyptic number.

6986631 is a deficient number, since it is larger than the sum of its proper divisors (2356969).

6986631 is a wasteful number, since it uses less digits than its factorization.

6986631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7025.

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

The square root of 6986631 is about 2643.2236000762. The cubic root of 6986631 is about 191.1712598241.

The spelling of 6986631 in words is "six million, nine hundred eighty-six thousand, six hundred thirty-one".