2311863 has 8 divisors (see below), whose sum is σ = 3244800. Its totient is φ = 1460088.

The previous prime is 2311861. The next prime is 2311873. The reversal of 2311863 is 3681132.

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

It is not a de Polignac number, because 2311863 - 2¹ = 2311861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20223 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (405600).

2^2311863 is an apocalyptic number.

2311863 is a deficient number, since it is larger than the sum of its proper divisors (932937).

2311863 is a wasteful number, since it uses less digits than its factorization.

2311863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40581.

The product of its digits is 864, while the sum is 24.

The square root of 2311863 is about 1520.4811738394. The cubic root of 2311863 is about 132.2271685125.

Adding to 2311863 its reverse (3681132), we get a palindrome (5992995).

The spelling of 2311863 in words is "two million, three hundred eleven thousand, eight hundred sixty-three".