6489243 has 36 divisors (see below), whose sum is σ = 10352160. Its totient is φ = 3910368.

The previous prime is 6489227. The next prime is 6489253. The reversal of 6489243 is 3429846.

It is a happy number.

6489243 is a `hidden beast` number, since 648 + 9 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 6489243 - 2⁴ = 6489227 is a prime.

It is a super-2 number, since 2×6489243² = 84220549426098, which contains 22 as substring.

Its product of digits (41472) is a multiple of the sum of its prime factors (128).

It is a junction number, because it is equal to n+sod(n) for n = 6489198 and 6489207.

It is not an unprimeable number, because it can be changed into a prime (6489253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 138046 + ... + 138092.

It is an arithmetic number, because the mean of its divisors is an integer number (287560).

Almost surely, 2^6489243 is an apocalyptic number.

6489243 is a deficient number, since it is larger than the sum of its proper divisors (3862917).

6489243 is a wasteful number, since it uses less digits than its factorization.

6489243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 102 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6489243 is about 2547.3992619925. The cubic root of 6489243 is about 186.5225506828.

The spelling of 6489243 in words is "six million, four hundred eighty-nine thousand, two hundred forty-three".