8489743 has 2 divisors, whose sum is σ = 8489744. Its totient is φ = 8489742.

The previous prime is 8489729. The next prime is 8489777. The reversal of 8489743 is 3479848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8489743 - 2¹⁷ = 8358671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8489743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8489543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244871 + 4244872.

It is an arithmetic number, because the mean of its divisors is an integer number (4244872).

Almost surely, 2^8489743 is an apocalyptic number.

8489743 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489743 is an equidigital number, since it uses as much as digits as its factorization.

8489743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 8489743 is about 2913.7163554471. The cubic root of 8489743 is about 204.0006327675. Note that the first 3 decimals are identical.

The spelling of 8489743 in words is "eight million, four hundred eighty-nine thousand, seven hundred forty-three".