6493971 has 16 divisors (see below), whose sum is σ = 9491328. Its totient is φ = 3916800.

The previous prime is 6493969. The next prime is 6494021. The reversal of 6493971 is 1793946.

It is not a de Polignac number, because 6493971 - 2¹ = 6493969 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6491971) 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 15 ways as a sum of consecutive naturals, for example, 9811 + ... + 10451.

It is an arithmetic number, because the mean of its divisors is an integer number (593208).

Almost surely, 2^6493971 is an apocalyptic number.

6493971 is a deficient number, since it is larger than the sum of its proper divisors (2997357).

6493971 is a wasteful number, since it uses less digits than its factorization.

6493971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its digits is 40824, while the sum is 39.

The square root of 6493971 is about 2548.3270983137. The cubic root of 6493971 is about 186.5678391975.

The spelling of 6493971 in words is "six million, four hundred ninety-three thousand, nine hundred seventy-one".