6506449 has 4 divisors (see below), whose sum is σ = 6511680. Its totient is φ = 6501220.

The previous prime is 6506441. The next prime is 6506473. The reversal of 6506449 is 9446056.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6506449 - 2³ = 6506441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6506441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444 + ... + 3634.

It is an arithmetic number, because the mean of its divisors is an integer number (1627920).

Almost surely, 2^6506449 is an apocalyptic number.

It is an amenable number.

6506449 is a deficient number, since it is larger than the sum of its proper divisors (5231).

6506449 is a wasteful number, since it uses less digits than its factorization.

6506449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6506449 is about 2550.7741962000. The cubic root of 6506449 is about 186.6872578617.

The spelling of 6506449 in words is "six million, five hundred six thousand, four hundred forty-nine".