71617417 has 2 divisors, whose sum is σ = 71617418. Its totient is φ = 71617416.

The previous prime is 71617411. The next prime is 71617421. The reversal of 71617417 is 71471617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 3455881 = 8256^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 71617417 - 2¹⁵ = 71584649 is a prime.

It is not a weakly prime, because it can be changed into another prime (71617411) 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, 35808708 + 35808709.

It is an arithmetic number, because the mean of its divisors is an integer number (35808709).

Almost surely, 2^71617417 is an apocalyptic number.

It is an amenable number.

71617417 is a deficient number, since it is larger than the sum of its proper divisors (1).

71617417 is an equidigital number, since it uses as much as digits as its factorization.

71617417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8232, while the sum is 34.

The square root of 71617417 is about 8462.7074272954. The cubic root of 71617417 is about 415.2785993989.

The spelling of 71617417 in words is "seventy-one million, six hundred seventeen thousand, four hundred seventeen".