68873291 has 2 divisors, whose sum is σ = 68873292. Its totient is φ = 68873290.

The previous prime is 68873281. The next prime is 68873323. The reversal of 68873291 is 19237886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68873291 - 2¹⁰ = 68872267 is a prime.

It is not a weakly prime, because it can be changed into another prime (68873251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34436645 + 34436646.

It is an arithmetic number, because the mean of its divisors is an integer number (34436646).

Almost surely, 2^68873291 is an apocalyptic number.

68873291 is a deficient number, since it is larger than the sum of its proper divisors (1).

68873291 is an equidigital number, since it uses as much as digits as its factorization.

68873291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 68873291 is about 8298.9933726929. The cubic root of 68873291 is about 409.9053737602.

The spelling of 68873291 in words is "sixty-eight million, eight hundred seventy-three thousand, two hundred ninety-one".