31671414 has 48 divisors (see below), whose sum is σ = 72345312. Its totient is φ = 9993984.

The previous prime is 31671413. The next prime is 31671421. The reversal of 31671414 is 41417613.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31671413) 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 23 ways as a sum of consecutive naturals, for example, 46444 + ... + 47120.

It is an arithmetic number, because the mean of its divisors is an integer number (1507194).

Almost surely, 2^31671414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31671414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36172656).

31671414 is an abundant number, since it is smaller than the sum of its proper divisors (40673898).

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

31671414 is a wasteful number, since it uses less digits than its factorization.

31671414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 818 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 31671414 is about 5627.7361345394. The cubic root of 31671414 is about 316.3898076303.

The spelling of 31671414 in words is "thirty-one million, six hundred seventy-one thousand, four hundred fourteen".