2468891 has 4 divisors (see below), whose sum is σ = 2473800. Its totient is φ = 2463984.

The previous prime is 2468881. The next prime is 2468903. The reversal of 2468891 is 1988642.

2468891 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, and also an emirpimes, since its reverse is a distinct semiprime: 1988642 = 2 ⋅994321.

It is a cyclic number.

It is not a de Polignac number, because 2468891 - 2¹⁰ = 2467867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2468801) 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, 1601 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

2^2468891 is an apocalyptic number.

2468891 is a deficient number, since it is larger than the sum of its proper divisors (4909).

2468891 is an equidigital number, since it uses as much as digits as its factorization.

2468891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908.

The product of its digits is 27648, while the sum is 38.

The square root of 2468891 is about 1571.2705050372. The cubic root of 2468891 is about 135.1555773842.

Subtracting from 2468891 its reverse (1988642), we obtain a square (480249 = 693²).

It can be divided in two parts, 246 and 8891, that multiplied together give a triangular number (2187186 = T₂₀₉₁).

The spelling of 2468891 in words is "two million, four hundred sixty-eight thousand, eight hundred ninety-one".