2263871 has 4 divisors (see below), whose sum is σ = 2274072. Its totient is φ = 2253672.

The previous prime is 2263861. The next prime is 2263879. The reversal of 2263871 is 1783622.

It is a happy number.

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 2263871 - 2¹⁰ = 2262847 is a prime.

It is a super-2 number, since 2×2263871² = 10250223809282, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (568518).

2^2263871 is an apocalyptic number.

2263871 is a deficient number, since it is larger than the sum of its proper divisors (10201).

2263871 is an equidigital number, since it uses as much as digits as its factorization.

2263871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200.

The product of its digits is 4032, while the sum is 29.

The square root of 2263871 is about 1504.6165624504. The cubic root of 2263871 is about 131.3057945700.

Subtracting from 2263871 its reverse (1783622), we obtain a square (480249 = 693²).

The spelling of 2263871 in words is "two million, two hundred sixty-three thousand, eight hundred seventy-one".