31343696 has 20 divisors (see below), whose sum is σ = 60919092. Its totient is φ = 15622656.

The previous prime is 31343681. The next prime is 31343701. The reversal of 31343696 is 69634313.

It can be written as a sum of positive squares in 2 ways, for example, as 15054400 + 16289296 = 3880^2 + 4036^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486 + ... + 8298.

Almost surely, 2^31343696 is an apocalyptic number.

It is an amenable number.

31343696 is a deficient number, since it is larger than the sum of its proper divisors (29575396).

31343696 is a wasteful number, since it uses less digits than its factorization.

31343696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158 (or 6152 counting only the distinct ones).

The product of its digits is 34992, while the sum is 35.

The square root of 31343696 is about 5598.5440964594. The cubic root of 31343696 is about 315.2947472131.

The spelling of 31343696 in words is "thirty-one million, three hundred forty-three thousand, six hundred ninety-six".