8245445971 has 4 divisors (see below), whose sum is σ = 9423366832. Its totient is φ = 7067525112.

The previous prime is 8245445963. The next prime is 8245446047. The reversal of 8245445971 is 1795445428.

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 8245445971 - 2³ = 8245445963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8245445071) 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, 588960420 + ... + 588960433.

It is an arithmetic number, because the mean of its divisors is an integer number (2355841708).

Almost surely, 2^8245445971 is an apocalyptic number.

8245445971 is a deficient number, since it is larger than the sum of its proper divisors (1177920861).

8245445971 is a wasteful number, since it uses less digits than its factorization.

8245445971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177920860.

The product of its digits is 1612800, while the sum is 49.

The square root of 8245445971 is about 90804.4380578394. The cubic root of 8245445971 is about 2020.2481454296.

The spelling of 8245445971 in words is "eight billion, two hundred forty-five million, four hundred forty-five thousand, nine hundred seventy-one".