68974271 has 2 divisors, whose sum is σ = 68974272. Its totient is φ = 68974270.

The previous prime is 68974247. The next prime is 68974273. The reversal of 68974271 is 17247986.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68974271 is a prime.

Together with 68974273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68974273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34487135 + 34487136.

It is an arithmetic number, because the mean of its divisors is an integer number (34487136).

Almost surely, 2^68974271 is an apocalyptic number.

68974271 is a deficient number, since it is larger than the sum of its proper divisors (1).

68974271 is an equidigital number, since it uses as much as digits as its factorization.

68974271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 68974271 is about 8305.0750147124. The cubic root of 68974271 is about 410.1056063474.

The spelling of 68974271 in words is "sixty-eight million, nine hundred seventy-four thousand, two hundred seventy-one".