6641439 has 8 divisors (see below), whose sum is σ = 10120320. Its totient is φ = 3795096.

The previous prime is 6641419. The next prime is 6641449. The reversal of 6641439 is 9341466.

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

It is not a de Polignac number, because 6641439 - 2⁸ = 6641183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641419) 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, 158109 + ... + 158150.

It is an arithmetic number, because the mean of its divisors is an integer number (1265040).

Almost surely, 2^6641439 is an apocalyptic number.

6641439 is a deficient number, since it is larger than the sum of its proper divisors (3478881).

6641439 is a wasteful number, since it uses less digits than its factorization.

6641439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316269.

The product of its digits is 15552, while the sum is 33.

The square root of 6641439 is about 2577.0989503704. The cubic root of 6641439 is about 187.9695042583.

The spelling of 6641439 in words is "six million, six hundred forty-one thousand, four hundred thirty-nine".