31067968 has 14 divisors (see below), whose sum is σ = 61650626. Its totient is φ = 15533952.

The previous prime is 31067957. The next prime is 31067989. The reversal of 31067968 is 86976013.

It can be written as a sum of positive squares in only one way, i.e., 26708224 + 4359744 = 5168^2 + 2088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31067968.

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 as a sum of consecutive naturals, namely, 242655 + ... + 242782.

Almost surely, 2^31067968 is an apocalyptic number.

It is an amenable number.

31067968 is a deficient number, since it is larger than the sum of its proper divisors (30582658).

31067968 is an equidigital number, since it uses as much as digits as its factorization.

31067968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485449 (or 485439 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 31067968 is about 5573.8647274580. The cubic root of 31067968 is about 314.3674819124.

The spelling of 31067968 in words is "thirty-one million, sixty-seven thousand, nine hundred sixty-eight".