8112889 has 4 divisors (see below), whose sum is σ = 8122356. Its totient is φ = 8103424.

The previous prime is 8112857. The next prime is 8112911. The reversal of 8112889 is 9882118.

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 6175225 + 1937664 = 2485^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 8112889 - 2⁵ = 8112857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8112089) 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, 3304 + ... + 5209.

It is an arithmetic number, because the mean of its divisors is an integer number (2030589).

Almost surely, 2^8112889 is an apocalyptic number.

It is an amenable number.

8112889 is a deficient number, since it is larger than the sum of its proper divisors (9467).

8112889 is an equidigital number, since it uses as much as digits as its factorization.

8112889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466.

The product of its digits is 9216, while the sum is 37.

The square root of 8112889 is about 2848.3133605697. The cubic root of 8112889 is about 200.9363510589.

The spelling of 8112889 in words is "eight million, one hundred twelve thousand, eight hundred eighty-nine".