31671004 has 12 divisors (see below), whose sum is σ = 55465200. Its totient is φ = 15823808.

The previous prime is 31670971. The next prime is 31671019. The reversal of 31671004 is 40017613.

It is a congruent number.

It is an unprimeable number.

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, 6657 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (4622100).

Almost surely, 2^31671004 is an apocalyptic number.

It is an amenable number.

31671004 is a deficient number, since it is larger than the sum of its proper divisors (23794196).

31671004 is a wasteful number, since it uses less digits than its factorization.

31671004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852 (or 5850 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 31671004 is about 5627.6997076959. The cubic root of 31671004 is about 316.3884423572.

Adding to 31671004 its reverse (40017613), we get a palindrome (71688617).

The spelling of 31671004 in words is "thirty-one million, six hundred seventy-one thousand, four".