4205023 has 4 divisors (see below), whose sum is σ = 4426360. Its totient is φ = 3983688.

The previous prime is 4205017. The next prime is 4205027. The reversal of 4205023 is 3205024.

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 4205023 - 2⁹ = 4204511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4204988 and 4205006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4205027) 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, 110640 + ... + 110677.

It is an arithmetic number, because the mean of its divisors is an integer number (1106590).

Almost surely, 2^4205023 is an apocalyptic number.

4205023 is a deficient number, since it is larger than the sum of its proper divisors (221337).

4205023 is a wasteful number, since it uses less digits than its factorization.

4205023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221336.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 4205023 is about 2050.6152735216. The cubic root of 4205023 is about 161.4071584395.

Subtracting from 4205023 its reverse (3205024), we obtain a palindrome (999999).

The spelling of 4205023 in words is "four million, two hundred five thousand, twenty-three".