6487249 has 4 divisors (see below), whose sum is σ = 6550336. Its totient is φ = 6424164.

The previous prime is 6487223. The next prime is 6487259. The reversal of 6487249 is 9427846.

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.

It is a cyclic number.

It is not a de Polignac number, because 6487249 - 2⁹ = 6486737 is a prime.

It is a Duffinian number.

6487249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6487259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31389 + ... + 31594.

It is an arithmetic number, because the mean of its divisors is an integer number (1637584).

Almost surely, 2^6487249 is an apocalyptic number.

It is an amenable number.

6487249 is a deficient number, since it is larger than the sum of its proper divisors (63087).

6487249 is a wasteful number, since it uses less digits than its factorization.

6487249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63086.

The product of its digits is 96768, while the sum is 40.

The square root of 6487249 is about 2547.0078523632. The cubic root of 6487249 is about 186.5034439823.

Subtracting from 6487249 its sum of digits (40), we obtain a square (6487209 = 2547²).

The spelling of 6487249 in words is "six million, four hundred eighty-seven thousand, two hundred forty-nine".