71344711 has 4 divisors (see below), whose sum is σ = 72011592. Its totient is φ = 70677832.

The previous prime is 71344709. The next prime is 71344739. The reversal of 71344711 is 11744317.

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 71344711 - 2¹ = 71344709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71344711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71344211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333280 + ... + 333493.

It is an arithmetic number, because the mean of its divisors is an integer number (18002898).

Almost surely, 2^71344711 is an apocalyptic number.

71344711 is a deficient number, since it is larger than the sum of its proper divisors (666881).

71344711 is a wasteful number, since it uses less digits than its factorization.

71344711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666880.

The product of its digits is 2352, while the sum is 28.

The square root of 71344711 is about 8446.5798403851. The cubic root of 71344711 is about 414.7508273424.

The spelling of 71344711 in words is "seventy-one million, three hundred forty-four thousand, seven hundred eleven".