6438741 has 4 divisors (see below), whose sum is σ = 8584992. Its totient is φ = 4292492.

The previous prime is 6438721. The next prime is 6438749. The reversal of 6438741 is 1478346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6438741 - 2¹⁴ = 6422357 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438749) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1073121 + ... + 1073126.

It is an arithmetic number, because the mean of its divisors is an integer number (2146248).

Almost surely, 2^6438741 is an apocalyptic number.

It is an amenable number.

6438741 is a deficient number, since it is larger than the sum of its proper divisors (2146251).

6438741 is a wasteful number, since it uses less digits than its factorization.

6438741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146250.

The product of its digits is 16128, while the sum is 33.

The square root of 6438741 is about 2537.4674382147. The cubic root of 6438741 is about 186.0374245425.

The spelling of 6438741 in words is "six million, four hundred thirty-eight thousand, seven hundred forty-one".