31374874 has 4 divisors (see below), whose sum is σ = 47062314. Its totient is φ = 15687436.

The previous prime is 31374869. The next prime is 31374899. The reversal of 31374874 is 47847313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47847313 = 67 ⋅714139.

It can be written as a sum of positive squares in only one way, i.e., 24651225 + 6723649 = 4965^2 + 2593^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7843717 + ... + 7843720.

Almost surely, 2^31374874 is an apocalyptic number.

31374874 is a deficient number, since it is larger than the sum of its proper divisors (15687440).

31374874 is a wasteful number, since it uses less digits than its factorization.

31374874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687439.

The product of its digits is 56448, while the sum is 37.

The square root of 31374874 is about 5601.3278782803. The cubic root of 31374874 is about 315.3992552243.

The spelling of 31374874 in words is "thirty-one million, three hundred seventy-four thousand, eight hundred seventy-four".