31674861 has 16 divisors (see below), whose sum is σ = 47013120. Its totient is φ = 21077280.

The previous prime is 31674847. The next prime is 31674941. The reversal of 31674861 is 16847613.

It is not a de Polignac number, because 31674861 - 2⁵ = 31674829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31674161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25116 + ... + 26346.

It is an arithmetic number, because the mean of its divisors is an integer number (2938320).

Almost surely, 2^31674861 is an apocalyptic number.

It is an amenable number.

31674861 is a deficient number, since it is larger than the sum of its proper divisors (15338259).

31674861 is a wasteful number, since it uses less digits than its factorization.

31674861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2187 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 31674861 is about 5628.0423772392. The cubic root of 31674861 is about 316.4012854475.

The spelling of 31674861 in words is "thirty-one million, six hundred seventy-four thousand, eight hundred sixty-one".