71343859 has 4 divisors (see below), whose sum is σ = 71366680. Its totient is φ = 71321040.

The previous prime is 71343829. The next prime is 71343863. The reversal of 71343859 is 95834317.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71343859 - 2⁵ = 71343827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71343809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5802 + ... + 13279.

It is an arithmetic number, because the mean of its divisors is an integer number (17841670).

Almost surely, 2^71343859 is an apocalyptic number.

71343859 is a deficient number, since it is larger than the sum of its proper divisors (22821).

71343859 is a wasteful number, since it uses less digits than its factorization.

71343859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22820.

The product of its digits is 90720, while the sum is 40.

The square root of 71343859 is about 8446.5294056198. The cubic root of 71343859 is about 414.7491763482.

The spelling of 71343859 in words is "seventy-one million, three hundred forty-three thousand, eight hundred fifty-nine".