31956104 has 8 divisors (see below), whose sum is σ = 59917710. Its totient is φ = 15978048.

The previous prime is 31956103. The next prime is 31956109. The reversal of 31956104 is 40165913.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 9012004 = 4790^2 + 3002^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31956101) 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 as a sum of consecutive naturals, namely, 1997249 + ... + 1997264.

Almost surely, 2^31956104 is an apocalyptic number.

It is an amenable number.

31956104 is a deficient number, since it is larger than the sum of its proper divisors (27961606).

31956104 is a wasteful number, since it uses less digits than its factorization.

31956104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994519 (or 3994515 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 31956104 is about 5652.9730231092. The cubic root of 31956104 is about 317.3349761388.

The spelling of 31956104 in words is "thirty-one million, nine hundred fifty-six thousand, one hundred four".