8487089 has 4 divisors (see below), whose sum is σ = 9139956. Its totient is φ = 7834224.

The previous prime is 8487079. The next prime is 8487103. The reversal of 8487089 is 9807848.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 6848689 = 1280^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 8487089 - 2²⁰ = 7438513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8487019) 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 3 ways as a sum of consecutive naturals, for example, 326414 + ... + 326439.

It is an arithmetic number, because the mean of its divisors is an integer number (2284989).

Almost surely, 2^8487089 is an apocalyptic number.

It is an amenable number.

8487089 is a deficient number, since it is larger than the sum of its proper divisors (652867).

8487089 is a wasteful number, since it uses less digits than its factorization.

8487089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652866.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 8487089 is about 2913.2608877339. The cubic root of 8487089 is about 203.9793728343.

The spelling of 8487089 in words is "eight million, four hundred eighty-seven thousand, eighty-nine".