31974706 has 8 divisors (see below), whose sum is σ = 48386844. Its totient is φ = 15845760.

The previous prime is 31974689. The next prime is 31974707. The reversal of 31974706 is 60747913.

It can be written as a sum of positive squares in 2 ways, for example, as 30349081 + 1625625 = 5509^2 + 1275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31974707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70515 + ... + 70966.

Almost surely, 2^31974706 is an apocalyptic number.

31974706 is a deficient number, since it is larger than the sum of its proper divisors (16412138).

31974706 is a wasteful number, since it uses less digits than its factorization.

31974706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141596.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 31974706 is about 5654.6181126580. The cubic root of 31974706 is about 317.3965389228.

The spelling of 31974706 in words is "thirty-one million, nine hundred seventy-four thousand, seven hundred six".