71716373 has 2 divisors, whose sum is σ = 71716374. Its totient is φ = 71716372.

The previous prime is 71716327. The next prime is 71716427. The reversal of 71716373 is 37361717.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41499364 + 30217009 = 6442^2 + 5497^2 .

It is an emirp because it is prime and its reverse (37361717) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71716373 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71716273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35858186 + 35858187.

It is an arithmetic number, because the mean of its divisors is an integer number (35858187).

Almost surely, 2^71716373 is an apocalyptic number.

It is an amenable number.

71716373 is a deficient number, since it is larger than the sum of its proper divisors (1).

71716373 is an equidigital number, since it uses as much as digits as its factorization.

71716373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18522, while the sum is 35.

The square root of 71716373 is about 8468.5520013754. The cubic root of 71716373 is about 415.4697791344.

The spelling of 71716373 in words is "seventy-one million, seven hundred sixteen thousand, three hundred seventy-three".