8500889 has 4 divisors (see below), whose sum is σ = 8548560. Its totient is φ = 8453220.

The previous prime is 8500883. The next prime is 8500903. The reversal of 8500889 is 9880058.

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 8500889 - 2⁴ = 8500873 is a prime.

It is a super-2 number, since 2×8500889² = 144530227580642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8500883) 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, 23567 + ... + 23924.

It is an arithmetic number, because the mean of its divisors is an integer number (2137140).

Almost surely, 2^8500889 is an apocalyptic number.

It is an amenable number.

8500889 is a deficient number, since it is larger than the sum of its proper divisors (47671).

8500889 is a wasteful number, since it uses less digits than its factorization.

8500889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47670.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 8500889 is about 2915.6284056786. The cubic root of 8500889 is about 204.0898697329.

The spelling of 8500889 in words is "eight million, five hundred thousand, eight hundred eighty-nine".