71617349 has 2 divisors, whose sum is σ = 71617350. Its totient is φ = 71617348.

The previous prime is 71617339. The next prime is 71617361. The reversal of 71617349 is 94371617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 889249 = 8410^2 + 943^2 .

It is an emirp because it is prime and its reverse (94371617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71617349 - 2⁴ = 71617333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71617309) 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, 35808674 + 35808675.

It is an arithmetic number, because the mean of its divisors is an integer number (35808675).

Almost surely, 2^71617349 is an apocalyptic number.

It is an amenable number.

71617349 is a deficient number, since it is larger than the sum of its proper divisors (1).

71617349 is an equidigital number, since it uses as much as digits as its factorization.

71617349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 71617349 is about 8462.7034096676. The cubic root of 71617349 is about 415.2784679646.

The spelling of 71617349 in words is "seventy-one million, six hundred seventeen thousand, three hundred forty-nine".