71305607 has 2 divisors, whose sum is σ = 71305608. Its totient is φ = 71305606.

The previous prime is 71305579. The next prime is 71305609. The reversal of 71305607 is 70650317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71305607 - 2²⁴ = 54528391 is a prime.

Together with 71305609, it forms a pair of twin primes.

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 71305607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71305609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35652803 + 35652804.

It is an arithmetic number, because the mean of its divisors is an integer number (35652804).

Almost surely, 2^71305607 is an apocalyptic number.

71305607 is a deficient number, since it is larger than the sum of its proper divisors (1).

71305607 is an equidigital number, since it uses as much as digits as its factorization.

71305607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 71305607 is about 8444.2647400469. The cubic root of 71305607 is about 414.6750385879.

The spelling of 71305607 in words is "seventy-one million, three hundred five thousand, six hundred seven".