4891171 has 2 divisors, whose sum is σ = 4891172. Its totient is φ = 4891170.

The previous prime is 4891153. The next prime is 4891193. The reversal of 4891171 is 1711984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4891171 - 2⁷ = 4891043 is a prime.

It is not a weakly prime, because it can be changed into another prime (4894171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445585 + 2445586.

It is an arithmetic number, because the mean of its divisors is an integer number (2445586).

Almost surely, 2^4891171 is an apocalyptic number.

4891171 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891171 is an equidigital number, since it uses as much as digits as its factorization.

4891171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 31.

The square root of 4891171 is about 2211.5991951527. The cubic root of 4891171 is about 169.7478499471.

It can be divided in two parts, 48 and 91171, that added together give a palindrome (91219).

The spelling of 4891171 in words is "four million, eight hundred ninety-one thousand, one hundred seventy-one".