6601271 has 4 divisors (see below), whose sum is σ = 6615000. Its totient is φ = 6587544.

The previous prime is 6601261. The next prime is 6601277. The reversal of 6601271 is 1721066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1721066 = 2 ⋅860533.

It is a cyclic number.

It is not a de Polignac number, because 6601271 - 2¹⁰ = 6600247 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 (6601277) 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, 6116 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (1653750).

Almost surely, 2^6601271 is an apocalyptic number.

6601271 is a deficient number, since it is larger than the sum of its proper divisors (13729).

6601271 is a wasteful number, since it uses less digits than its factorization.

6601271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 6601271 is about 2569.2938718644. The cubic root of 6601271 is about 187.5897857393.

It can be divided in two parts, 6601 and 271, that multiplied together give a palindrome (1788871).

The spelling of 6601271 in words is "six million, six hundred one thousand, two hundred seventy-one".