31996274 has 4 divisors (see below), whose sum is σ = 47994414. Its totient is φ = 15998136.

The previous prime is 31996267. The next prime is 31996291. The reversal of 31996274 is 47269913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47269913 = 29 ⋅1629997.

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 243049 = 5635^2 + 493^2 .

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 as a sum of consecutive naturals, namely, 7999067 + ... + 7999070.

Almost surely, 2^31996274 is an apocalyptic number.

31996274 is a deficient number, since it is larger than the sum of its proper divisors (15998140).

31996274 is a wasteful number, since it uses less digits than its factorization.

31996274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15998139.

The product of its digits is 81648, while the sum is 41.

The square root of 31996274 is about 5656.5249049217. The cubic root of 31996274 is about 317.4678877147.

The spelling of 31996274 in words is "thirty-one million, nine hundred ninety-six thousand, two hundred seventy-four".