31926980 has 12 divisors (see below), whose sum is σ = 67046700. Its totient is φ = 12770784.

The previous prime is 31926971. The next prime is 31926989. The reversal of 31926980 is 8962913.

It is an interprime number because it is at equal distance from previous prime (31926971) and next prime (31926989).

It can be written as a sum of positive squares in 2 ways, for example, as 5466244 + 26460736 = 2338^2 + 5144^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31926989) 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 in 3 ways as a sum of consecutive naturals, for example, 798155 + ... + 798194.

It is an arithmetic number, because the mean of its divisors is an integer number (5587225).

Almost surely, 2^31926980 is an apocalyptic number.

It is an amenable number.

31926980 is an abundant number, since it is smaller than the sum of its proper divisors (35119720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31926980 is a wasteful number, since it uses less digits than its factorization.

31926980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596358 (or 1596356 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 31926980 is about 5650.3964462682. The cubic root of 31926980 is about 317.2385430971.

The spelling of 31926980 in words is "thirty-one million, nine hundred twenty-six thousand, nine hundred eighty".