31306696 has 16 divisors (see below), whose sum is σ = 58873500. Its totient is φ = 15607104.

The previous prime is 31306663. The next prime is 31306697. The reversal of 31306696 is 69660313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30404196 + 902500 = 5514^2 + 950^2 .

It is not an unprimeable number, because it can be changed into a prime (31306697) 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, 2815 + ... + 8398.

Almost surely, 2^31306696 is an apocalyptic number.

It is an amenable number.

31306696 is a deficient number, since it is larger than the sum of its proper divisors (27566804).

31306696 is a wasteful number, since it uses less digits than its factorization.

31306696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11568 (or 11564 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 31306696 is about 5595.2386901722. The cubic root of 31306696 is about 315.1706340151.

The spelling of 31306696 in words is "thirty-one million, three hundred six thousand, six hundred ninety-six".