68089873 has 2 divisors, whose sum is σ = 68089874. Its totient is φ = 68089872.

The previous prime is 68089849. The next prime is 68089891. The reversal of 68089873 is 37898086.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67043344 + 1046529 = 8188^2 + 1023^2 .

It is a cyclic number.

It is not a de Polignac number, because 68089873 - 2⁵ = 68089841 is a prime.

It is a super-2 number, since 2×68089873² = 9272461610312258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68089843) by changing a digit.

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, 34044936 + 34044937.

It is an arithmetic number, because the mean of its divisors is an integer number (34044937).

Almost surely, 2^68089873 is an apocalyptic number.

It is an amenable number.

68089873 is a deficient number, since it is larger than the sum of its proper divisors (1).

68089873 is an equidigital number, since it uses as much as digits as its factorization.

68089873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 68089873 is about 8251.6588029317. The cubic root of 68089873 is about 408.3452499461.

The spelling of 68089873 in words is "sixty-eight million, eighty-nine thousand, eight hundred seventy-three".