972688569 has 16 divisors (see below), whose sum is σ = 1316818944. Its totient is φ = 638531600.

The previous prime is 972688481. The next prime is 972688571. The reversal of 972688569 is 965886279.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 972688569 - 2¹² = 972684473 is a prime.

It is a super-2 number, since 2×972688569² = 1892246104526535522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (972684569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204472 + ... + 209174.

It is an arithmetic number, because the mean of its divisors is an integer number (82301184).

Almost surely, 2^972688569 is an apocalyptic number.

It is an amenable number.

972688569 is a deficient number, since it is larger than the sum of its proper divisors (344130375).

972688569 is a wasteful number, since it uses less digits than its factorization.

972688569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748.

The product of its digits is 13063680, while the sum is 60.

The square root of 972688569 is about 31187.9555117036. The cubic root of 972688569 is about 990.8120294089.

The spelling of 972688569 in words is "nine hundred seventy-two million, six hundred eighty-eight thousand, five hundred sixty-nine".