71052917 has 4 divisors (see below), whose sum is σ = 76518540. Its totient is φ = 65587296.

The previous prime is 71052901. The next prime is 71052923. The reversal of 71052917 is 71925017.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5134756 + 65918161 = 2266^2 + 8119^2 .

It is a cyclic number.

It is not a de Polignac number, because 71052917 - 2⁴ = 71052901 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 (71052997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732792 + ... + 2732817.

It is an arithmetic number, because the mean of its divisors is an integer number (19129635).

Almost surely, 2^71052917 is an apocalyptic number.

It is an amenable number.

71052917 is a deficient number, since it is larger than the sum of its proper divisors (5465623).

71052917 is a wasteful number, since it uses less digits than its factorization.

71052917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465622.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 71052917 is about 8429.2892345678. The cubic root of 71052917 is about 414.1846224719.

The spelling of 71052917 in words is "seventy-one million, fifty-two thousand, nine hundred seventeen".