71416517 has 2 divisors, whose sum is σ = 71416518. Its totient is φ = 71416516.

The previous prime is 71416511. The next prime is 71416561. The reversal of 71416517 is 71561417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55368481 + 16048036 = 7441^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 71416517 - 2¹² = 71412421 is a prime.

It is a super-2 number, since 2×71416517² = 10200637800822578, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71416511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35708258 + 35708259.

It is an arithmetic number, because the mean of its divisors is an integer number (35708259).

Almost surely, 2^71416517 is an apocalyptic number.

It is an amenable number.

71416517 is a deficient number, since it is larger than the sum of its proper divisors (1).

71416517 is an equidigital number, since it uses as much as digits as its factorization.

71416517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 32.

The square root of 71416517 is about 8450.8293675828. The cubic root of 71416517 is about 414.8899248391.

The spelling of 71416517 in words is "seventy-one million, four hundred sixteen thousand, five hundred seventeen".