8688145 has 8 divisors (see below), whose sum is σ = 10452456. Its totient is φ = 6932736.

The previous prime is 8688143. The next prime is 8688157. The reversal of 8688145 is 5418868.

It can be written as a sum of positive squares in 4 ways, for example, as 690561 + 7997584 = 831^2 + 2828^2 .

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 8688145 - 2¹ = 8688143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 8688098 and 8688107.

It is not an unprimeable number, because it can be changed into a prime (8688143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159 + ... + 4171.

It is an arithmetic number, because the mean of its divisors is an integer number (1306557).

Almost surely, 2^8688145 is an apocalyptic number.

It is an amenable number.

8688145 is a deficient number, since it is larger than the sum of its proper divisors (1764311).

8688145 is a wasteful number, since it uses less digits than its factorization.

8688145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451.

The product of its digits is 61440, while the sum is 40.

The square root of 8688145 is about 2947.5659449790. The cubic root of 8688145 is about 205.5775503884.

The spelling of 8688145 in words is "eight million, six hundred eighty-eight thousand, one hundred forty-five".