2328391 has 4 divisors (see below), whose sum is σ = 2507512. Its totient is φ = 2149272.

The previous prime is 2328377. The next prime is 2328397. The reversal of 2328391 is 1938232.

2328391 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 2328391 - 2⁹ = 2327879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2328397) 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, 89541 + ... + 89566.

It is an arithmetic number, because the mean of its divisors is an integer number (626878).

2^2328391 is an apocalyptic number.

2328391 is a deficient number, since it is larger than the sum of its proper divisors (179121).

2328391 is a wasteful number, since it uses less digits than its factorization.

2328391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179120.

The product of its digits is 2592, while the sum is 28.

The square root of 2328391 is about 1525.9066157534. The cubic root of 2328391 is about 132.5415272706.

The spelling of 2328391 in words is "two million, three hundred twenty-eight thousand, three hundred ninety-one".