68486291 has 2 divisors, whose sum is σ = 68486292. Its totient is φ = 68486290.

The previous prime is 68486239. The next prime is 68486293. The reversal of 68486291 is 19268486.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68486291 - 2⁶ = 68486227 is a prime.

Together with 68486293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68486293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34243145 + 34243146.

It is an arithmetic number, because the mean of its divisors is an integer number (34243146).

Almost surely, 2^68486291 is an apocalyptic number.

68486291 is a deficient number, since it is larger than the sum of its proper divisors (1).

68486291 is an equidigital number, since it uses as much as digits as its factorization.

68486291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 68486291 is about 8275.6444462048. The cubic root of 68486291 is about 409.1361765411.

The spelling of 68486291 in words is "sixty-eight million, four hundred eighty-six thousand, two hundred ninety-one".