71944713 has 16 divisors (see below), whose sum is σ = 111219840. Its totient is φ = 45877392.

The previous prime is 71944693. The next prime is 71944721. The reversal of 71944713 is 31744917.

It is not a de Polignac number, because 71944713 - 2¹⁷ = 71813641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71944723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57306 + ... + 58547.

It is an arithmetic number, because the mean of its divisors is an integer number (6951240).

Almost surely, 2^71944713 is an apocalyptic number.

It is an amenable number.

71944713 is a deficient number, since it is larger than the sum of its proper divisors (39275127).

71944713 is a wasteful number, since it uses less digits than its factorization.

71944713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115885 (or 115879 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 71944713 is about 8482.0229308815. The cubic root of 71944713 is about 415.9102543858.

It can be divided in two parts, 71 and 944713, that added together give a square (944784 = 972²).

The spelling of 71944713 in words is "seventy-one million, nine hundred forty-four thousand, seven hundred thirteen".