31743968 has 12 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 15871968.

The previous prime is 31743967. The next prime is 31743983. The reversal of 31743968 is 86934713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31743967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495968 + ... + 496031.

It is an arithmetic number, because the mean of its divisors is an integer number (5208000).

Almost surely, 2^31743968 is an apocalyptic number.

It is an amenable number.

31743968 is a deficient number, since it is larger than the sum of its proper divisors (30752032).

31743968 is an equidigital number, since it uses as much as digits as its factorization.

31743968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992009 (or 992001 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 31743968 is about 5634.1785559210. The cubic root of 31743968 is about 316.6312223795.

The spelling of 31743968 in words is "thirty-one million, seven hundred forty-three thousand, nine hundred sixty-eight".