71066017 has 4 divisors (see below), whose sum is σ = 77526576. Its totient is φ = 64605460.

The previous prime is 71065999. The next prime is 71066041.

71066017 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71066017 - 2¹¹ = 71063969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71066077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230263 + ... + 3230284.

It is an arithmetic number, because the mean of its divisors is an integer number (19381644).

Almost surely, 2^71066017 is an apocalyptic number.

It is an amenable number.

71066017 is a deficient number, since it is larger than the sum of its proper divisors (6460559).

71066017 is a wasteful number, since it uses less digits than its factorization.

71066017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460558.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 71066017 is about 8430.0662512225. The cubic root of 71066017 is about 414.2100752629.

The spelling of 71066017 in words is "seventy-one million, sixty-six thousand, seventeen".