67856996 has 12 divisors (see below), whose sum is σ = 125735148. Its totient is φ = 31932672.

The previous prime is 67856983. The next prime is 67857007. The reversal of 67856996 is 69965876.

It can be written as a sum of positive squares in 2 ways, for example, as 46104100 + 21752896 = 6790^2 + 4664^2 .

It is a super-2 number, since 2×67856996² = 9209143812288032, which contains 22 as substring.

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, 498881 + ... + 499016.

It is an arithmetic number, because the mean of its divisors is an integer number (10477929).

Almost surely, 2^67856996 is an apocalyptic number.

It is an amenable number.

67856996 is a deficient number, since it is larger than the sum of its proper divisors (57878152).

67856996 is a wasteful number, since it uses less digits than its factorization.

67856996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997918 (or 997916 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The square root of 67856996 is about 8237.5357965838. The cubic root of 67856996 is about 407.8791853615.

The spelling of 67856996 in words is "sixty-seven million, eight hundred fifty-six thousand, nine hundred ninety-six".