68236772 has 6 divisors (see below), whose sum is σ = 119414358. Its totient is φ = 34118384.

The previous prime is 68236747. The next prime is 68236781. The reversal of 68236772 is 27763286.

It can be written as a sum of positive squares in only one way, i.e., 61559716 + 6677056 = 7846^2 + 2584^2 .

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, 8529593 + ... + 8529600.

It is an arithmetic number, because the mean of its divisors is an integer number (19902393).

Almost surely, 2^68236772 is an apocalyptic number.

It is an amenable number.

68236772 is a deficient number, since it is larger than the sum of its proper divisors (51177586).

68236772 is a wasteful number, since it uses less digits than its factorization.

68236772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059197 (or 17059195 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 68236772 is about 8260.5551871530. Note that the first 3 decimals coincide. The cubic root of 68236772 is about 408.6386975114.

The spelling of 68236772 in words is "sixty-eight million, two hundred thirty-six thousand, seven hundred seventy-two".