2313891 has 6 divisors (see below), whose sum is σ = 3342300. Its totient is φ = 1542588.

The previous prime is 2313889. The next prime is 2313907. The reversal of 2313891 is 1983132.

2313891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2313891 - 2¹ = 2313889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2313851) 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 5 ways as a sum of consecutive naturals, for example, 128541 + ... + 128558.

It is an arithmetic number, because the mean of its divisors is an integer number (557050).

2^2313891 is an apocalyptic number.

2313891 is a deficient number, since it is larger than the sum of its proper divisors (1028409).

2313891 is a wasteful number, since it uses less digits than its factorization.

2313891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257105 (or 257102 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2313891 is about 1521.1479218012. The cubic root of 2313891 is about 132.2658210805.

The spelling of 2313891 in words is "two million, three hundred thirteen thousand, eight hundred ninety-one".