71195897 has 2 divisors, whose sum is σ = 71195898. Its totient is φ = 71195896.

The previous prime is 71195863. The next prime is 71195909. The reversal of 71195897 is 79859117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 10106041 = 7816^2 + 3179^2 .

It is a cyclic number.

It is not a de Polignac number, because 71195897 - 2¹⁰ = 71194873 is a prime.

It is not a weakly prime, because it can be changed into another prime (71195297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35597948 + 35597949.

It is an arithmetic number, because the mean of its divisors is an integer number (35597949).

Almost surely, 2^71195897 is an apocalyptic number.

It is an amenable number.

71195897 is a deficient number, since it is larger than the sum of its proper divisors (1).

71195897 is an equidigital number, since it uses as much as digits as its factorization.

71195897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 47.

The square root of 71195897 is about 8437.7661143220. The cubic root of 71195897 is about 414.4622579827.

The spelling of 71195897 in words is "seventy-one million, one hundred ninety-five thousand, eight hundred ninety-seven".