2327891 has 6 divisors (see below), whose sum is σ = 2385180. Its totient is φ = 2271948.

The previous prime is 2327887. The next prime is 2327909. The reversal of 2327891 is 1987232.

It is not a de Polignac number, because 2327891 - 2² = 2327887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2327851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1220 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (397530).

2^2327891 is an apocalyptic number.

2327891 is a deficient number, since it is larger than the sum of its proper divisors (57289).

2327891 is an equidigital number, since it uses as much as digits as its factorization.

2327891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1302 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 2327891 is about 1525.7427699321. The cubic root of 2327891 is about 132.5320392439.

The spelling of 2327891 in words is "two million, three hundred twenty-seven thousand, eight hundred ninety-one".