71337713 has 4 divisors (see below), whose sum is σ = 71377908. Its totient is φ = 71297520.

The previous prime is 71337703. The next prime is 71337737. The reversal of 71337713 is 31773317.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16459249 + 54878464 = 4057^2 + 7408^2 .

It is a cyclic number.

It is not a de Polignac number, because 71337713 - 2¹⁰ = 71336689 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 71337713.

It is not an unprimeable number, because it can be changed into a prime (71337703) 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, 17306 + ... + 21027.

It is an arithmetic number, because the mean of its divisors is an integer number (17844477).

Almost surely, 2^71337713 is an apocalyptic number.

It is an amenable number.

71337713 is a deficient number, since it is larger than the sum of its proper divisors (40195).

71337713 is a wasteful number, since it uses less digits than its factorization.

71337713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40194.

The product of its digits is 9261, while the sum is 32.

The square root of 71337713 is about 8446.1655797172. The cubic root of 71337713 is about 414.7372663223.

The spelling of 71337713 in words is "seventy-one million, three hundred thirty-seven thousand, seven hundred thirteen".