31741864 has 48 divisors (see below), whose sum is σ = 74530080. Its totient is φ = 12312480.

The previous prime is 31741847. The next prime is 31741877. The reversal of 31741864 is 46814713.

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 11 ways as a sum of consecutive naturals, for example, 139719 + ... + 139945.

It is an arithmetic number, because the mean of its divisors is an integer number (1552710).

Almost surely, 2^31741864 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 31741864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37265040).

31741864 is an abundant number, since it is smaller than the sum of its proper divisors (42788216).

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

31741864 is a wasteful number, since it uses less digits than its factorization.

31741864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 247 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 31741864 is about 5633.9918352798. The cubic root of 31741864 is about 316.6242267532.

The spelling of 31741864 in words is "thirty-one million, seven hundred forty-one thousand, eight hundred sixty-four".