31664482 has 8 divisors (see below), whose sum is σ = 47736000. Its totient is φ = 15752484.

The previous prime is 31664471. The next prime is 31664483. The reversal of 31664482 is 28446613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31664483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39382 + ... + 40177.

It is an arithmetic number, because the mean of its divisors is an integer number (5967000).

Almost surely, 2^31664482 is an apocalyptic number.

31664482 is a deficient number, since it is larger than the sum of its proper divisors (16071518).

31664482 is a wasteful number, since it uses less digits than its factorization.

31664482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79760.

The product of its digits is 27648, while the sum is 34.

The square root of 31664482 is about 5627.1202226361. The cubic root of 31664482 is about 316.3667229418.

The spelling of 31664482 in words is "thirty-one million, six hundred sixty-four thousand, four hundred eighty-two".