71560847 has 2 divisors, whose sum is σ = 71560848. Its totient is φ = 71560846.

The previous prime is 71560787. The next prime is 71560873. The reversal of 71560847 is 74806517.

It is a strong prime.

It is an emirp because it is prime and its reverse (74806517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71560847 - 2¹⁰ = 71559823 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71560847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71560147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35780423 + 35780424.

It is an arithmetic number, because the mean of its divisors is an integer number (35780424).

Almost surely, 2^71560847 is an apocalyptic number.

71560847 is a deficient number, since it is larger than the sum of its proper divisors (1).

71560847 is an equidigital number, since it uses as much as digits as its factorization.

71560847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 71560847 is about 8459.3644560333. The cubic root of 71560847 is about 415.1692288969.

The spelling of 71560847 in words is "seventy-one million, five hundred sixty thousand, eight hundred forty-seven".