6449943 has 8 divisors (see below), whose sum is σ = 8615808. Its totient is φ = 4292024.

The previous prime is 6449923. The next prime is 6450007. The reversal of 6449943 is 3499446.

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 6449943 - 2⁹ = 6449431 is a prime.

6449943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449903) 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, 280 + ... + 3602.

It is an arithmetic number, because the mean of its divisors is an integer number (1076976).

Almost surely, 2^6449943 is an apocalyptic number.

6449943 is a deficient number, since it is larger than the sum of its proper divisors (2165865).

6449943 is a wasteful number, since it uses less digits than its factorization.

6449943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973.

The product of its digits is 93312, while the sum is 39.

The square root of 6449943 is about 2539.6737979512. The cubic root of 6449943 is about 186.1452501683.

The spelling of 6449943 in words is "six million, four hundred forty-nine thousand, nine hundred forty-three".