8416689 has 16 divisors (see below), whose sum is σ = 11784192. Its totient is φ = 5333328.

The previous prime is 8416673. The next prime is 8416693. The reversal of 8416689 is 9866148.

It is not a de Polignac number, because 8416689 - 2⁴ = 8416673 is a prime.

8416689 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8416689.

It is not an unprimeable number, because it can be changed into a prime (8416669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15114 + ... + 15660.

It is an arithmetic number, because the mean of its divisors is an integer number (736512).

Almost surely, 2^8416689 is an apocalyptic number.

It is an amenable number.

8416689 is a deficient number, since it is larger than the sum of its proper divisors (3367503).

8416689 is a wasteful number, since it uses less digits than its factorization.

8416689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 82944, while the sum is 42.

The square root of 8416689 is about 2901.1530466351. The cubic root of 8416689 is about 203.4138064223.

It can be divided in two parts, 84166 and 89, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 8416689 in words is "eight million, four hundred sixteen thousand, six hundred eighty-nine".