68239271 has 2 divisors, whose sum is σ = 68239272. Its totient is φ = 68239270.

The previous prime is 68239267. The next prime is 68239313. The reversal of 68239271 is 17293286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68239271 - 2² = 68239267 is a prime.

It is a super-2 number, since 2×68239271² = 9313196213222882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68239201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34119635 + 34119636.

It is an arithmetic number, because the mean of its divisors is an integer number (34119636).

Almost surely, 2^68239271 is an apocalyptic number.

68239271 is a deficient number, since it is larger than the sum of its proper divisors (1).

68239271 is an equidigital number, since it uses as much as digits as its factorization.

68239271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 68239271 is about 8260.7064467877. The cubic root of 68239271 is about 408.6436859050.

The spelling of 68239271 in words is "sixty-eight million, two hundred thirty-nine thousand, two hundred seventy-one".