31348856 has 32 divisors (see below), whose sum is σ = 73284480. Its totient is φ = 12213600.

The previous prime is 31348847. The next prime is 31348861. The reversal of 31348856 is 65884313.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24830 + ... + 26061.

It is an arithmetic number, because the mean of its divisors is an integer number (2290140).

Almost surely, 2^31348856 is an apocalyptic number.

It is an amenable number.

31348856 is an abundant number, since it is smaller than the sum of its proper divisors (41935624).

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

31348856 is a wasteful number, since it uses less digits than its factorization.

31348856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50915 (or 50911 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 31348856 is about 5599.0049115892. The cubic root of 31348856 is about 315.3120482106.

The spelling of 31348856 in words is "thirty-one million, three hundred forty-eight thousand, eight hundred fifty-six".