8122989 has 8 divisors (see below), whose sum is σ = 12377920. Its totient is φ = 4641696.

The previous prime is 8122969. The next prime is 8123053. The reversal of 8122989 is 9892218.

8122989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8122989 - 2⁸ = 8122733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8122909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193384 + ... + 193425.

It is an arithmetic number, because the mean of its divisors is an integer number (1547240).

Almost surely, 2^8122989 is an apocalyptic number.

It is an amenable number.

8122989 is a deficient number, since it is larger than the sum of its proper divisors (4254931).

8122989 is a wasteful number, since it uses less digits than its factorization.

8122989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386819.

The product of its digits is 20736, while the sum is 39.

The square root of 8122989 is about 2850.0857881825. The cubic root of 8122989 is about 201.0197005516.

It can be divided in two parts, 81229 and 89, that added together give a palindrome (81318).

The spelling of 8122989 in words is "eight million, one hundred twenty-two thousand, nine hundred eighty-nine".