71368897 has 2 divisors, whose sum is σ = 71368898. Its totient is φ = 71368896.

The previous prime is 71368877. The next prime is 71368919. The reversal of 71368897 is 79886317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67223601 + 4145296 = 8199^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 71368897 - 2¹¹ = 71366849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71368897.

It is not a weakly prime, because it can be changed into another prime (71368867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35684448 + 35684449.

It is an arithmetic number, because the mean of its divisors is an integer number (35684449).

Almost surely, 2^71368897 is an apocalyptic number.

It is an amenable number.

71368897 is a deficient number, since it is larger than the sum of its proper divisors (1).

71368897 is an equidigital number, since it uses as much as digits as its factorization.

71368897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 49.

The square root of 71368897 is about 8448.0114228142. The cubic root of 71368897 is about 414.7976891679.

The spelling of 71368897 in words is "seventy-one million, three hundred sixty-eight thousand, eight hundred ninety-seven".