6544997 has 4 divisors (see below), whose sum is σ = 6579456. Its totient is φ = 6510540.

The previous prime is 6544943. The next prime is 6545003. The reversal of 6544997 is 7994456.

6544997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6544997 - 2¹⁰ = 6543973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16943 + ... + 17324.

It is an arithmetic number, because the mean of its divisors is an integer number (1644864).

Almost surely, 2^6544997 is an apocalyptic number.

It is an amenable number.

6544997 is a deficient number, since it is larger than the sum of its proper divisors (34459).

6544997 is a wasteful number, since it uses less digits than its factorization.

6544997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34458.

The product of its digits is 272160, while the sum is 44.

The square root of 6544997 is about 2558.3191747708. The cubic root of 6544997 is about 187.0552135663.

The spelling of 6544997 in words is "six million, five hundred forty-four thousand, nine hundred ninety-seven".