31371674 has 4 divisors (see below), whose sum is σ = 47057514. Its totient is φ = 15685836.

The previous prime is 31371673. The next prime is 31371709. The reversal of 31371674 is 47617313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18361225 + 13010449 = 4285^2 + 3607^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31371674.

It is not an unprimeable number, because it can be changed into a prime (31371673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7842917 + ... + 7842920.

Almost surely, 2^31371674 is an apocalyptic number.

31371674 is a deficient number, since it is larger than the sum of its proper divisors (15685840).

31371674 is a wasteful number, since it uses less digits than its factorization.

31371674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15685839.

The product of its digits is 10584, while the sum is 32.

The square root of 31371674 is about 5601.0422244436. The cubic root of 31371674 is about 315.3885320797.

Adding to 31371674 its reverse (47617313), we get a palindrome (78988987).

The spelling of 31371674 in words is "thirty-one million, three hundred seventy-one thousand, six hundred seventy-four".