68815367 has 2 divisors, whose sum is σ = 68815368. Its totient is φ = 68815366.

The previous prime is 68815309. The next prime is 68815393. The reversal of 68815367 is 76351886.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68815367 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68805367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34407683 + 34407684.

It is an arithmetic number, because the mean of its divisors is an integer number (34407684).

Almost surely, 2^68815367 is an apocalyptic number.

68815367 is a deficient number, since it is larger than the sum of its proper divisors (1).

68815367 is an equidigital number, since it uses as much as digits as its factorization.

68815367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 68815367 is about 8295.5028177923. The cubic root of 68815367 is about 409.7904282912.

The spelling of 68815367 in words is "sixty-eight million, eight hundred fifteen thousand, three hundred sixty-seven".