8707889 has 4 divisors (see below), whose sum is σ = 8722980. Its totient is φ = 8692800.

The previous prime is 8707883. The next prime is 8707903. The reversal of 8707889 is 9887078.

8707889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4264225 + 4443664 = 2065^2 + 2108^2 .

It is a cyclic number.

It is not a de Polignac number, because 8707889 - 2⁴ = 8707873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8707883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644 + ... + 7845.

It is an arithmetic number, because the mean of its divisors is an integer number (2180745).

Almost surely, 2^8707889 is an apocalyptic number.

It is an amenable number.

8707889 is a deficient number, since it is larger than the sum of its proper divisors (15091).

8707889 is a wasteful number, since it uses less digits than its factorization.

8707889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15090.

The product of its (nonzero) digits is 225792, while the sum is 47.

The square root of 8707889 is about 2950.9132484707. The cubic root of 8707889 is about 205.7331590700.

The spelling of 8707889 in words is "eight million, seven hundred seven thousand, eight hundred eighty-nine".