8243389 has 8 divisors (see below), whose sum is σ = 10277568. Its totient is φ = 6423360.

The previous prime is 8243383. The next prime is 8243393. The reversal of 8243389 is 9833428.

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

It is a cyclic number.

It is not a de Polignac number, because 8243389 - 2³ = 8243381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243381) 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, 53452 + ... + 53605.

It is an arithmetic number, because the mean of its divisors is an integer number (1284696).

Almost surely, 2^8243389 is an apocalyptic number.

It is an amenable number.

8243389 is a deficient number, since it is larger than the sum of its proper divisors (2034179).

8243389 is a wasteful number, since it uses less digits than its factorization.

8243389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107075.

The product of its digits is 41472, while the sum is 37.

The square root of 8243389 is about 2871.1302652440. The cubic root of 8243389 is about 202.0080136023.

The spelling of 8243389 in words is "eight million, two hundred forty-three thousand, three hundred eighty-nine".