8243489 has 8 divisors (see below), whose sum is σ = 8740608. Its totient is φ = 7760880.

The previous prime is 8243441. The next prime is 8243497. The reversal of 8243489 is 9843428.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8243489 is a prime.

It is a super-2 number, since 2×8243489² = 135910221786242, 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 (8243429) 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, 2447 + ... + 4740.

It is an arithmetic number, because the mean of its divisors is an integer number (1092576).

Almost surely, 2^8243489 is an apocalyptic number.

It is an amenable number.

8243489 is a deficient number, since it is larger than the sum of its proper divisors (497119).

8243489 is a wasteful number, since it uses less digits than its factorization.

8243489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255.

The product of its digits is 55296, while the sum is 38.

The square root of 8243489 is about 2871.1476799357. The cubic root of 8243489 is about 202.0088304475.

The spelling of 8243489 in words is "eight million, two hundred forty-three thousand, four hundred eighty-nine".