68866073 has 2 divisors, whose sum is σ = 68866074. Its totient is φ = 68866072.

The previous prime is 68866043. The next prime is 68866079. The reversal of 68866073 is 37066886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 20313049 = 6968^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 68866073 - 2⁸ = 68865817 is a prime.

It is not a weakly prime, because it can be changed into another prime (68866079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34433036 + 34433037.

It is an arithmetic number, because the mean of its divisors is an integer number (34433037).

Almost surely, 2^68866073 is an apocalyptic number.

It is an amenable number.

68866073 is a deficient number, since it is larger than the sum of its proper divisors (1).

68866073 is an equidigital number, since it uses as much as digits as its factorization.

68866073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 68866073 is about 8298.5584892799. The cubic root of 68866073 is about 409.8910537420.

The spelling of 68866073 in words is "sixty-eight million, eight hundred sixty-six thousand, seventy-three".