31996634 has 16 divisors (see below), whose sum is σ = 50485248. Its totient is φ = 15179472.

The previous prime is 31996609. The next prime is 31996663. The reversal of 31996634 is 43669913.

It is a junction number, because it is equal to n+sod(n) for n = 31996591 and 31996600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3104 + ... + 8580.

It is an arithmetic number, because the mean of its divisors is an integer number (3155328).

Almost surely, 2^31996634 is an apocalyptic number.

31996634 is a deficient number, since it is larger than the sum of its proper divisors (18488614).

31996634 is a wasteful number, since it uses less digits than its factorization.

31996634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629.

The product of its digits is 104976, while the sum is 41.

The square root of 31996634 is about 5656.5567264901. The cubic root of 31996634 is about 317.4690783534.

The spelling of 31996634 in words is "thirty-one million, nine hundred ninety-six thousand, six hundred thirty-four".