71343829 has 2 divisors, whose sum is σ = 71343830. Its totient is φ = 71343828.

The previous prime is 71343827. The next prime is 71343863. The reversal of 71343829 is 92834317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70946929 + 396900 = 8423^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 71343829 - 2¹ = 71343827 is a prime.

Together with 71343827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71343827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35671914 + 35671915.

It is an arithmetic number, because the mean of its divisors is an integer number (35671915).

Almost surely, 2^71343829 is an apocalyptic number.

It is an amenable number.

71343829 is a deficient number, since it is larger than the sum of its proper divisors (1).

71343829 is an equidigital number, since it uses as much as digits as its factorization.

71343829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 71343829 is about 8446.5276297423. The cubic root of 71343829 is about 414.7491182144.

The spelling of 71343829 in words is "seventy-one million, three hundred forty-three thousand, eight hundred twenty-nine".