6416449 has 4 divisors (see below), whose sum is σ = 6910036. Its totient is φ = 5922864.

The previous prime is 6416447. The next prime is 6416477. The reversal of 6416449 is 9446146.

6416449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 5880625 = 732^2 + 2425^2 .

It is a cyclic number.

It is not a de Polignac number, because 6416449 - 2¹ = 6416447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416447) 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, 246774 + ... + 246799.

It is an arithmetic number, because the mean of its divisors is an integer number (1727509).

Almost surely, 2^6416449 is an apocalyptic number.

It is an amenable number.

6416449 is a deficient number, since it is larger than the sum of its proper divisors (493587).

6416449 is a wasteful number, since it uses less digits than its factorization.

6416449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493586.

The product of its digits is 20736, while the sum is 34.

The square root of 6416449 is about 2533.0710609851. The cubic root of 6416449 is about 185.8224787152.

The spelling of 6416449 in words is "six million, four hundred sixteen thousand, four hundred forty-nine".