31085852 has 24 divisors (see below), whose sum is σ = 62407296. Its totient is φ = 13272048.

The previous prime is 31085833. The next prime is 31085869. The reversal of 31085852 is 25858013.

It is a happy number.

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, 5963 + ... + 9885.

It is an arithmetic number, because the mean of its divisors is an integer number (2600304).

Almost surely, 2^31085852 is an apocalyptic number.

It is an amenable number.

31085852 is an abundant number, since it is smaller than the sum of its proper divisors (31321444).

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

31085852 is a wasteful number, since it uses less digits than its factorization.

31085852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 31085852 is about 5575.4687695296. The cubic root of 31085852 is about 314.4277912919.

The spelling of 31085852 in words is "thirty-one million, eighty-five thousand, eight hundred fifty-two".