8489642 has 12 divisors (see below), whose sum is σ = 14813730. Its totient is φ = 3638376.

The previous prime is 8489641. The next prime is 8489651. The reversal of 8489642 is 2469848.

It can be written as a sum of positive squares in only one way, i.e., 7187761 + 1301881 = 2681^2 + 1141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8489642.

It is not an unprimeable number, because it can be changed into a prime (8489641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43217 + ... + 43412.

Almost surely, 2^8489642 is an apocalyptic number.

8489642 is a deficient number, since it is larger than the sum of its proper divisors (6324088).

8489642 is a wasteful number, since it uses less digits than its factorization.

8489642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86645 (or 86638 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 8489642 is about 2913.6990235781. The cubic root of 8489642 is about 203.9998237856. Note that the first 3 decimals are identical.

The spelling of 8489642 in words is "eight million, four hundred eighty-nine thousand, six hundred forty-two".