71044297 has 2 divisors, whose sum is σ = 71044298. Its totient is φ = 71044296.

The previous prime is 71044289. The next prime is 71044331. The reversal of 71044297 is 79244017.

It is an a-pointer prime, because the next prime (71044331) can be obtained adding 71044297 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43837641 + 27206656 = 6621^2 + 5216^2 .

It is a cyclic number.

It is not a de Polignac number, because 71044297 - 2³ = 71044289 is a prime.

It is not a weakly prime, because it can be changed into another prime (71044697) 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, 35522148 + 35522149.

It is an arithmetic number, because the mean of its divisors is an integer number (35522149).

Almost surely, 2^71044297 is an apocalyptic number.

It is an amenable number.

71044297 is a deficient number, since it is larger than the sum of its proper divisors (1).

71044297 is an equidigital number, since it uses as much as digits as its factorization.

71044297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 71044297 is about 8428.7779066719. Note that the first 3 decimals coincide. The cubic root of 71044297 is about 414.1678724402.

The spelling of 71044297 in words is "seventy-one million, forty-four thousand, two hundred ninety-seven".