71343967 has 2 divisors, whose sum is σ = 71343968. Its totient is φ = 71343966.

The previous prime is 71343949. The next prime is 71344001. The reversal of 71343967 is 76934317.

It is a weak prime.

It is an emirp because it is prime and its reverse (76934317) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71343967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71343367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35671983 + 35671984.

It is an arithmetic number, because the mean of its divisors is an integer number (35671984).

Almost surely, 2^71343967 is an apocalyptic number.

71343967 is a deficient number, since it is larger than the sum of its proper divisors (1).

71343967 is an equidigital number, since it uses as much as digits as its factorization.

71343967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 40.

The square root of 71343967 is about 8446.5357987757. The cubic root of 71343967 is about 414.7493856299.

The spelling of 71343967 in words is "seventy-one million, three hundred forty-three thousand, nine hundred sixty-seven".