31996376 has 8 divisors (see below), whose sum is σ = 59993220. Its totient is φ = 15998184.

The previous prime is 31996351. The next prime is 31996403. The reversal of 31996376 is 67369913.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1999766 + ... + 1999781.

Almost surely, 2^31996376 is an apocalyptic number.

It is an amenable number.

31996376 is a deficient number, since it is larger than the sum of its proper divisors (27996844).

31996376 is a wasteful number, since it uses less digits than its factorization.

31996376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999553 (or 3999549 counting only the distinct ones).

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

The square root of 31996376 is about 5656.5339210509. The cubic root of 31996376 is about 317.4682250632.

The spelling of 31996376 in words is "thirty-one million, nine hundred ninety-six thousand, three hundred seventy-six".