6944409 has 12 divisors (see below), whose sum is σ = 10056852. Its totient is φ = 4617600.

The previous prime is 6944387. The next prime is 6944429. The reversal of 6944409 is 9044496.

It can be written as a sum of positive squares in 2 ways, for example, as 2471184 + 4473225 = 1572^2 + 2115^2 .

It is not a de Polignac number, because 6944409 - 2⁹ = 6943897 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6944429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3949 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (838071).

Almost surely, 2^6944409 is an apocalyptic number.

It is an amenable number.

6944409 is a deficient number, since it is larger than the sum of its proper divisors (3112443).

6944409 is a wasteful number, since it uses less digits than its factorization.

6944409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6944409 is about 2635.2246583546. The cubic root of 6944409 is about 190.7853825016.

The spelling of 6944409 in words is "six million, nine hundred forty-four thousand, four hundred nine".