6449375 has 20 divisors (see below), whose sum is σ = 8547264. Its totient is φ = 4848000.

The previous prime is 6449363. The next prime is 6449413. The reversal of 6449375 is 5739446.

It is not a de Polignac number, because 6449375 - 2¹⁴ = 6432991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 10322 + ... + 10928.

Almost surely, 2^6449375 is an apocalyptic number.

6449375 is a deficient number, since it is larger than the sum of its proper divisors (2097889).

6449375 is an equidigital number, since it uses as much as digits as its factorization.

6449375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 629 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 6449375 is about 2539.5619701043. The cubic root of 6449375 is about 186.1397858510.

The spelling of 6449375 in words is "six million, four hundred forty-nine thousand, three hundred seventy-five".