522716769 has 9 divisors (see below), whose sum is σ = 755134419. Its totient is φ = 348432120.

The previous prime is 522716741. The next prime is 522716783. The reversal of 522716769 is 967617225.

The square root of 522716769 is 22863.

It is a perfect power (a square), and thus also a powerful number.

522716769 is a `hidden beast` number, since 522 + 7 + 1 + 67 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 462809169 + 59907600 = 21513^2 + 7740^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 522716769 - 2⁷ = 522716641 is a prime.

It is a super-2 number, since 2×522716769² = 546465641187598722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (522716269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 64779 + ... + 72399.

Almost surely, 2^522716769 is an apocalyptic number.

522716769 is the 22863-rd square number.

522716769 is the 11432-nd centered octagonal number.

It is an amenable number.

522716769 is a deficient number, since it is larger than the sum of its proper divisors (232417650).

522716769 is an frugal number, since it uses more digits than its factorization.

522716769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15248 (or 7624 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The cubic root of 522716769 is about 805.5431536214.

The spelling of 522716769 in words is "five hundred twenty-two million, seven hundred sixteen thousand, seven hundred sixty-nine".