8697987169 has 3 divisors (see below), whose sum is σ = 8698080433. Its totient is φ = 8697893906.

The previous prime is 8697987127. The next prime is 8697987173. The reversal of 8697987169 is 9617897968.

The square root of 8697987169 is 93263.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8697987169 - 2²¹ = 8695890017 is a prime.

It is a super-2 number, since 2×8697987169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8697987098 and 8697987107.

It is not an unprimeable number, because it can be changed into a prime (8697987469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 46632 + ... + 139894.

Almost surely, 2^8697987169 is an apocalyptic number.

8697987169 is the 93263-rd square number.

8697987169 is the 46632-nd centered octagonal number.

It is an amenable number.

8697987169 is a deficient number, since it is larger than the sum of its proper divisors (93264).

8697987169 is an frugal number, since it uses more digits than its factorization.

8697987169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186526 (or 93263 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 70.

The cubic root of 8697987169 is about 2056.5514905668.

The spelling of 8697987169 in words is "eight billion, six hundred ninety-seven million, nine hundred eighty-seven thousand, one hundred sixty-nine".