8522064389 has 4 divisors (see below), whose sum is σ = 8729919660. Its totient is φ = 8314209120.

The previous prime is 8522064379. The next prime is 8522064409. The reversal of 8522064389 is 9834602258.

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 3166312900 + 5355751489 = 56270^2 + 73183^2 .

It is a cyclic number.

It is not a de Polignac number, because 8522064389 - 2¹² = 8522060293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8522064359) 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, 103927574 + ... + 103927655.

It is an arithmetic number, because the mean of its divisors is an integer number (2182479915).

Almost surely, 2^8522064389 is an apocalyptic number.

It is an amenable number.

8522064389 is a deficient number, since it is larger than the sum of its proper divisors (207855271).

8522064389 is a wasteful number, since it uses less digits than its factorization.

8522064389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207855270.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 8522064389 is about 92315.0279694482. The cubic root of 8522064389 is about 2042.5918923813.

The spelling of 8522064389 in words is "eight billion, five hundred twenty-two million, sixty-four thousand, three hundred eighty-nine".