31679963 has 8 divisors (see below), whose sum is σ = 36564960. Its totient is φ = 26884800.

The previous prime is 31679941. The next prime is 31679971. The reversal of 31679963 is 36997613.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31679963 - 2⁶ = 31679899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31679903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21698 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (4570620).

Almost surely, 2^31679963 is an apocalyptic number.

31679963 is a deficient number, since it is larger than the sum of its proper divisors (4884997).

31679963 is a wasteful number, since it uses less digits than its factorization.

31679963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44917.

The product of its digits is 183708, while the sum is 44.

The square root of 31679963 is about 5628.4956249428. The cubic root of 31679963 is about 316.4182725538.

The spelling of 31679963 in words is "thirty-one million, six hundred seventy-nine thousand, nine hundred sixty-three".