8857889 has 4 divisors (see below), whose sum is σ = 8982720. Its totient is φ = 8733060.

The previous prime is 8857883. The next prime is 8857907. The reversal of 8857889 is 9887588.

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 8857889 - 2⁴ = 8857873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8857889.

It is not an unprimeable number, because it can be changed into a prime (8857883) 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, 62309 + ... + 62450.

It is an arithmetic number, because the mean of its divisors is an integer number (2245680).

Almost surely, 2^8857889 is an apocalyptic number.

It is an amenable number.

8857889 is a deficient number, since it is larger than the sum of its proper divisors (124831).

8857889 is a wasteful number, since it uses less digits than its factorization.

8857889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124830.

The product of its digits is 1290240, while the sum is 53.

The square root of 8857889 is about 2976.2205899429. The cubic root of 8857889 is about 206.9077435903.

The spelling of 8857889 in words is "eight million, eight hundred fifty-seven thousand, eight hundred eighty-nine".