8870289 has 4 divisors (see below), whose sum is σ = 11827056. Its totient is φ = 5913524.

The previous prime is 8870287. The next prime is 8870333. The reversal of 8870289 is 9820788.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8870289 - 2¹ = 8870287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8870289.

It is not an unprimeable number, because it can be changed into a prime (8870287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478379 + ... + 1478384.

It is an arithmetic number, because the mean of its divisors is an integer number (2956764).

Almost surely, 2^8870289 is an apocalyptic number.

It is an amenable number.

8870289 is a deficient number, since it is larger than the sum of its proper divisors (2956767).

8870289 is a wasteful number, since it uses less digits than its factorization.

8870289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956766.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 8870289 is about 2978.3030403235. The cubic root of 8870289 is about 207.0042473865.

The spelling of 8870289 in words is "eight million, eight hundred seventy thousand, two hundred eighty-nine".