6538641 has 8 divisors (see below), whose sum is σ = 9177120. Its totient is φ = 4129632.

The previous prime is 6538621. The next prime is 6538669. The reversal of 6538641 is 1468356.

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

It is not a de Polignac number, because 6538641 - 2⁶ = 6538577 is a prime.

It is a super-2 number, since 2×6538641² = 85507652253762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6538621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57300 + ... + 57413.

It is an arithmetic number, because the mean of its divisors is an integer number (1147140).

Almost surely, 2^6538641 is an apocalyptic number.

It is an amenable number.

6538641 is a deficient number, since it is larger than the sum of its proper divisors (2638479).

6538641 is a wasteful number, since it uses less digits than its factorization.

6538641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114735.

The product of its digits is 17280, while the sum is 33.

The square root of 6538641 is about 2557.0766511781. The cubic root of 6538641 is about 186.9946427207.

The spelling of 6538641 in words is "six million, five hundred thirty-eight thousand, six hundred forty-one".