31374974 has 4 divisors (see below), whose sum is σ = 47062464. Its totient is φ = 15687486.

The previous prime is 31374953. The next prime is 31374983. The reversal of 31374974 is 47947313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47947313 = 3793 ⋅12641.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7843742 + ... + 7843745.

It is an arithmetic number, because the mean of its divisors is an integer number (11765616).

Almost surely, 2^31374974 is an apocalyptic number.

31374974 is a deficient number, since it is larger than the sum of its proper divisors (15687490).

31374974 is a wasteful number, since it uses less digits than its factorization.

31374974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15687489.

The product of its digits is 63504, while the sum is 38.

The square root of 31374974 is about 5601.3368047280. The cubic root of 31374974 is about 315.3995903108.

The spelling of 31374974 in words is "thirty-one million, three hundred seventy-four thousand, nine hundred seventy-four".