8689091 has 4 divisors (see below), whose sum is σ = 9200232. Its totient is φ = 8177952.

The previous prime is 8689069. The next prime is 8689097. The reversal of 8689091 is 1909868.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8689091 - 2¹⁰ = 8688067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8689097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255545 + ... + 255578.

It is an arithmetic number, because the mean of its divisors is an integer number (2300058).

Almost surely, 2^8689091 is an apocalyptic number.

8689091 is a deficient number, since it is larger than the sum of its proper divisors (511141).

8689091 is a wasteful number, since it uses less digits than its factorization.

8689091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511140.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 8689091 is about 2947.7264119996. The cubic root of 8689091 is about 205.5850114864.

The spelling of 8689091 in words is "eight million, six hundred eighty-nine thousand, ninety-one".