31664414 has 8 divisors (see below), whose sum is σ = 47520648. Its totient is φ = 15824200.

The previous prime is 31664377. The next prime is 31664419. The reversal of 31664414 is 41446613.

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

It is a super-2 number, since 2×31664414² = 2005270227926792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31664419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4889 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (5940081).

Almost surely, 2^31664414 is an apocalyptic number.

31664414 is a deficient number, since it is larger than the sum of its proper divisors (15856234).

31664414 is a wasteful number, since it uses less digits than its factorization.

31664414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010.

The product of its digits is 6912, while the sum is 29.

The square root of 31664414 is about 5627.1141804659. The cubic root of 31664414 is about 316.3664964740.

The spelling of 31664414 in words is "thirty-one million, six hundred sixty-four thousand, four hundred fourteen".