8693689 has 2 divisors, whose sum is σ = 8693690. Its totient is φ = 8693688.

The previous prime is 8693687. The next prime is 8693693. The reversal of 8693689 is 9863968.

8693689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 514089 = 2860^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 8693689 - 2¹ = 8693687 is a prime.

Together with 8693687, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8693687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4346844 + 4346845.

It is an arithmetic number, because the mean of its divisors is an integer number (4346845).

Almost surely, 2^8693689 is an apocalyptic number.

It is an amenable number.

8693689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8693689 is an equidigital number, since it uses as much as digits as its factorization.

8693689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 8693689 is about 2948.5062319758. The cubic root of 8693689 is about 205.6212681824.

It can be divided in two parts, 86936 and 89, that added together give a square (87025 = 295²).

The spelling of 8693689 in words is "eight million, six hundred ninety-three thousand, six hundred eighty-nine".