31848864 has 72 divisors (see below), whose sum is σ = 88331040. Its totient is φ = 10046592.

The previous prime is 31848857. The next prime is 31848911. The reversal of 31848864 is 46884813.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34197 + ... + 35115.

It is an arithmetic number, because the mean of its divisors is an integer number (1226820).

Almost surely, 2^31848864 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 31848864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44165520).

31848864 is an abundant number, since it is smaller than the sum of its proper divisors (56482176).

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

31848864 is a wasteful number, since it uses less digits than its factorization.

31848864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 943 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 31848864 is about 5643.4797775840. The cubic root of 31848864 is about 316.9796017617.

The spelling of 31848864 in words is "thirty-one million, eight hundred forty-eight thousand, eight hundred sixty-four".