68027816 has 8 divisors (see below), whose sum is σ = 127552170. Its totient is φ = 34013904.

The previous prime is 68027807. The next prime is 68027819. The reversal of 68027816 is 61872086.

It can be written as a sum of positive squares in only one way, i.e., 49140100 + 18887716 = 7010^2 + 4346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 68027816.

It is not an unprimeable number, because it can be changed into a prime (68027819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4251731 + ... + 4251746.

Almost surely, 2^68027816 is an apocalyptic number.

It is an amenable number.

68027816 is a deficient number, since it is larger than the sum of its proper divisors (59524354).

68027816 is a wasteful number, since it uses less digits than its factorization.

68027816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503483 (or 8503479 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 68027816 is about 8247.8976715282. The cubic root of 68027816 is about 408.2211571726.

The spelling of 68027816 in words is "sixty-eight million, twenty-seven thousand, eight hundred sixteen".