71343743 has 2 divisors, whose sum is σ = 71343744. Its totient is φ = 71343742.

The previous prime is 71343739. The next prime is 71343787. The reversal of 71343743 is 34734317.

It is a weak prime.

It is an emirp because it is prime and its reverse (34734317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71343743 - 2² = 71343739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71340743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35671871 + 35671872.

It is an arithmetic number, because the mean of its divisors is an integer number (35671872).

Almost surely, 2^71343743 is an apocalyptic number.

71343743 is a deficient number, since it is larger than the sum of its proper divisors (1).

71343743 is an equidigital number, since it uses as much as digits as its factorization.

71343743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 32.

The square root of 71343743 is about 8446.5225388914. The cubic root of 71343743 is about 414.7489515639.

The spelling of 71343743 in words is "seventy-one million, three hundred forty-three thousand, seven hundred forty-three".