8688945 has 8 divisors (see below), whose sum is σ = 13902336. Its totient is φ = 4634096.

The previous prime is 8688943. The next prime is 8688961. The reversal of 8688945 is 5498868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8688945 - 2¹ = 8688943 is a prime.

8688945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8688894 and 8688903.

It is not an unprimeable number, because it can be changed into a prime (8688943) 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, 289617 + ... + 289646.

It is an arithmetic number, because the mean of its divisors is an integer number (1737792).

Almost surely, 2^8688945 is an apocalyptic number.

It is an amenable number.

8688945 is a deficient number, since it is larger than the sum of its proper divisors (5213391).

8688945 is a wasteful number, since it uses less digits than its factorization.

8688945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579271.

The product of its digits is 552960, while the sum is 48.

The square root of 8688945 is about 2947.7016470464. The cubic root of 8688945 is about 205.5838600203.

The spelling of 8688945 in words is "eight million, six hundred eighty-eight thousand, nine hundred forty-five".