2168423 has 4 divisors (see below), whose sum is σ = 2179968. Its totient is φ = 2156880.

The previous prime is 2168407. The next prime is 2168429. The reversal of 2168423 is 3248612.

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 2168423 - 2⁴ = 2168407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2168392 and 2168401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168429) 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, 5486 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (544992).

2^2168423 is an apocalyptic number.

2168423 is a deficient number, since it is larger than the sum of its proper divisors (11545).

2168423 is a wasteful number, since it uses less digits than its factorization.

2168423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544.

The product of its digits is 2304, while the sum is 26.

The square root of 2168423 is about 1472.5566203036. The cubic root of 2168423 is about 129.4338894234.

The spelling of 2168423 in words is "two million, one hundred sixty-eight thousand, four hundred twenty-three".