2811423 has 8 divisors (see below), whose sum is σ = 3770928. Its totient is φ = 1863104.

The previous prime is 2811407. The next prime is 2811427. The reversal of 2811423 is 3241182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2811423 - 2⁴ = 2811407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2811423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 3227.

It is an arithmetic number, because the mean of its divisors is an integer number (471366).

2^2811423 is an apocalyptic number.

2811423 is a deficient number, since it is larger than the sum of its proper divisors (959505).

2811423 is a wasteful number, since it uses less digits than its factorization.

2811423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593.

The product of its digits is 384, while the sum is 21.

The square root of 2811423 is about 1676.7298530175. The cubic root of 2811423 is about 141.1373843286.

The spelling of 2811423 in words is "two million, eight hundred eleven thousand, four hundred twenty-three".