8689869 has 8 divisors (see below), whose sum is σ = 12873920. Its totient is φ = 5793228.

The previous prime is 8689853. The next prime is 8689943. The reversal of 8689869 is 9689868.

It is not a de Polignac number, because 8689869 - 2⁴ = 8689853 is a prime.

It is a super-2 number, since 2×8689869² = 151027646474322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160897 + ... + 160950.

It is an arithmetic number, because the mean of its divisors is an integer number (1609240).

Almost surely, 2^8689869 is an apocalyptic number.

It is an amenable number.

8689869 is a deficient number, since it is larger than the sum of its proper divisors (4184051).

8689869 is a wasteful number, since it uses less digits than its factorization.

8689869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321856 (or 321850 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 8689869 is about 2947.8583751598. The cubic root of 8689869 is about 205.5911471633.

Subtracting 8689869 from its reverse (9689868), we obtain a palindrome (999999).

The spelling of 8689869 in words is "eight million, six hundred eighty-nine thousand, eight hundred sixty-nine".