6449057 has 4 divisors (see below), whose sum is σ = 6455316. Its totient is φ = 6442800.

The previous prime is 6449041. The next prime is 6449071. The reversal of 6449057 is 7509446.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2085136 + 4363921 = 1444^2 + 2089^2 .

It is a cyclic number.

It is not a de Polignac number, because 6449057 - 2⁴ = 6449041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6449087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (1613829).

Almost surely, 2^6449057 is an apocalyptic number.

It is an amenable number.

6449057 is a deficient number, since it is larger than the sum of its proper divisors (6259).

6449057 is a wasteful number, since it uses less digits than its factorization.

6449057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6449057 is about 2539.4993601102. The cubic root of 6449057 is about 186.1367264628.

The spelling of 6449057 in words is "six million, four hundred forty-nine thousand, fifty-seven".