31994108 has 24 divisors (see below), whose sum is σ = 58673664. Its totient is φ = 15246000.

The previous prime is 31994099. The next prime is 31994111. The reversal of 31994108 is 80149913.

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 in 7 ways as a sum of consecutive naturals, for example, 6383 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (2444736).

Almost surely, 2^31994108 is an apocalyptic number.

It is an amenable number.

31994108 is a deficient number, since it is larger than the sum of its proper divisors (26679556).

31994108 is a wasteful number, since it uses less digits than its factorization.

31994108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 31994108 is about 5656.3334413735. Note that the first 3 decimals coincide. The cubic root of 31994108 is about 317.4607238497.

The spelling of 31994108 in words is "thirty-one million, nine hundred ninety-four thousand, one hundred eight".