2671791 has 4 divisors (see below), whose sum is σ = 3562392. Its totient is φ = 1781192.

The previous prime is 2671787. The next prime is 2671793. The reversal of 2671791 is 1971762.

2671791 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 2671791 - 2² = 2671787 is a prime.

It is a D-number.

2671791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2671793) 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 3 ways as a sum of consecutive naturals, for example, 445296 + ... + 445301.

It is an arithmetic number, because the mean of its divisors is an integer number (890598).

2^2671791 is an apocalyptic number.

2671791 is a deficient number, since it is larger than the sum of its proper divisors (890601).

2671791 is an equidigital number, since it uses as much as digits as its factorization.

2671791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890600.

The product of its digits is 5292, while the sum is 33.

The square root of 2671791 is about 1634.5614090636. The cubic root of 2671791 is about 138.7610233917.

It can be divided in two parts, 26 and 71791, that added together give a palindrome (71817).

The spelling of 2671791 in words is "two million, six hundred seventy-one thousand, seven hundred ninety-one".