31680852 has 96 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 8791776.

The previous prime is 31680841. The next prime is 31680863. The reversal of 31680852 is 25808613.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31680841) and next prime (31680863).

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 31 ways as a sum of consecutive naturals, for example, 176899 + ... + 177077.

It is an arithmetic number, because the mean of its divisors is an integer number (924000).

Almost surely, 2^31680852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31680852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44352000).

31680852 is an abundant number, since it is smaller than the sum of its proper divisors (57023148).

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

31680852 is a wasteful number, since it uses less digits than its factorization.

31680852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 31680852 is about 5628.5745975336. The cubic root of 31680852 is about 316.4212322922.

The spelling of 31680852 in words is "thirty-one million, six hundred eighty thousand, eight hundred fifty-two".