8622389 has 4 divisors (see below), whose sum is σ = 8628480. Its totient is φ = 8616300.

The previous prime is 8622379. The next prime is 8622391. The reversal of 8622389 is 9832268.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8622389 - 2⁴ = 8622373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8622359) 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, 314 + ... + 4164.

It is an arithmetic number, because the mean of its divisors is an integer number (2157120).

Almost surely, 2^8622389 is an apocalyptic number.

It is an amenable number.

8622389 is a deficient number, since it is larger than the sum of its proper divisors (6091).

8622389 is a wasteful number, since it uses less digits than its factorization.

8622389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090.

The product of its digits is 41472, while the sum is 38.

The square root of 8622389 is about 2936.3904713100. The cubic root of 8622389 is about 205.0576003122.

The spelling of 8622389 in words is "eight million, six hundred twenty-two thousand, three hundred eighty-nine".