71065079 has 4 divisors (see below), whose sum is σ = 71255976. Its totient is φ = 70874184.

The previous prime is 71065069. The next prime is 71065133. The reversal of 71065079 is 97056017.

71065079 = 237² + 238² + ... + 609².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71065079 - 2²⁰ = 70016503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71065019) 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 in 3 ways as a sum of consecutive naturals, for example, 94889 + ... + 95634.

It is an arithmetic number, because the mean of its divisors is an integer number (17813994).

Almost surely, 2^71065079 is an apocalyptic number.

71065079 is a deficient number, since it is larger than the sum of its proper divisors (190897).

71065079 is a wasteful number, since it uses less digits than its factorization.

71065079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190896.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 71065079 is about 8430.0106168379. The cubic root of 71065079 is about 414.2082528693.

The spelling of 71065079 in words is "seventy-one million, sixty-five thousand, seventy-nine".