31671696 has 40 divisors (see below), whose sum is σ = 93507904. Its totient is φ = 9048960.

The previous prime is 31671691. The next prime is 31671701. The reversal of 31671696 is 69617613.

It is an interprime number because it is at equal distance from previous prime (31671691) and next prime (31671701).

It is not an unprimeable number, because it can be changed into a prime (31671691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46795 + ... + 47466.

Almost surely, 2^31671696 is an apocalyptic number.

It is an amenable number.

31671696 is an abundant number, since it is smaller than the sum of its proper divisors (61836208).

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

31671696 is a wasteful number, since it uses less digits than its factorization.

31671696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94279 (or 94273 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 31671696 is about 5627.7611889632. The cubic root of 31671696 is about 316.3907466649.

The spelling of 31671696 in words is "thirty-one million, six hundred seventy-one thousand, six hundred ninety-six".