71216627 has 2 divisors, whose sum is σ = 71216628. Its totient is φ = 71216626.

The previous prime is 71216623. The next prime is 71216681. The reversal of 71216627 is 72661217.

It is a weak prime.

It is an emirp because it is prime and its reverse (72661217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71216627 - 2² = 71216623 is a prime.

It is a super-2 number, since 2×71216627² = 10143615922514258, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4185347 and since 71216627 and 4185347 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 71216593 and 71216602.

It is not a weakly prime, because it can be changed into another prime (71216623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35608313 + 35608314.

It is an arithmetic number, because the mean of its divisors is an integer number (35608314).

Almost surely, 2^71216627 is an apocalyptic number.

71216627 is a deficient number, since it is larger than the sum of its proper divisors (1).

71216627 is an equidigital number, since it uses as much as digits as its factorization.

71216627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 71216627 is about 8438.9944306179. The cubic root of 71216627 is about 414.5024801922.

The spelling of 71216627 in words is "seventy-one million, two hundred sixteen thousand, six hundred twenty-seven".