71416997 has 2 divisors, whose sum is σ = 71416998. Its totient is φ = 71416996.

The previous prime is 71416979. The next prime is 71417009. The reversal of 71416997 is 79961417.

Together with previous prime (71416979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47348161 + 24068836 = 6881^2 + 4906^2 .

It is an emirp because it is prime and its reverse (79961417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71416997 - 2¹⁶ = 71351461 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 (71416927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35708498 + 35708499.

It is an arithmetic number, because the mean of its divisors is an integer number (35708499).

Almost surely, 2^71416997 is an apocalyptic number.

It is an amenable number.

71416997 is a deficient number, since it is larger than the sum of its proper divisors (1).

71416997 is an equidigital number, since it uses as much as digits as its factorization.

71416997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The square root of 71416997 is about 8450.8577671145. The cubic root of 71416997 is about 414.8908543473.

The spelling of 71416997 in words is "seventy-one million, four hundred sixteen thousand, nine hundred ninety-seven".