6493871 has 4 divisors (see below), whose sum is σ = 6527712. Its totient is φ = 6460032.

The previous prime is 6493853. The next prime is 6493909. The reversal of 6493871 is 1783946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6493871 - 2¹⁰ = 6492847 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 (6493831) 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, 16631 + ... + 17016.

It is an arithmetic number, because the mean of its divisors is an integer number (1631928).

Almost surely, 2^6493871 is an apocalyptic number.

6493871 is a deficient number, since it is larger than the sum of its proper divisors (33841).

6493871 is a wasteful number, since it uses less digits than its factorization.

6493871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33840.

The product of its digits is 36288, while the sum is 38.

The square root of 6493871 is about 2548.3074775231. The cubic root of 6493871 is about 186.5668815462.

The spelling of 6493871 in words is "six million, four hundred ninety-three thousand, eight hundred seventy-one".