6449191 has 8 divisors (see below), whose sum is σ = 7413120. Its totient is φ = 5495928.

The previous prime is 6449173. The next prime is 6449197. The reversal of 6449191 is 1919446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6449191 - 2⁵ = 6449159 is a prime.

It is a Duffinian number.

6449191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^6449191 is an apocalyptic number.

6449191 is a deficient number, since it is larger than the sum of its proper divisors (963929).

6449191 is a wasteful number, since it uses less digits than its factorization.

6449191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333.

The product of its digits is 7776, while the sum is 34.

The square root of 6449191 is about 2539.5257431261. The cubic root of 6449191 is about 186.1380156512.

The spelling of 6449191 in words is "six million, four hundred forty-nine thousand, one hundred ninety-one".