4023213 has 4 divisors (see below), whose sum is σ = 5364288. Its totient is φ = 2682140.

The previous prime is 4023191. The next prime is 4023221. The reversal of 4023213 is 3123204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4023213 - 2⁵ = 4023181 is a prime.

It is a D-number.

4023213 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4023192 and 4023201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023223) 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, 670533 + ... + 670538.

It is an arithmetic number, because the mean of its divisors is an integer number (1341072).

Almost surely, 2^4023213 is an apocalyptic number.

It is an amenable number.

4023213 is a deficient number, since it is larger than the sum of its proper divisors (1341075).

4023213 is a wasteful number, since it uses less digits than its factorization.

4023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341074.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4023213 is about 2005.7948549141. The cubic root of 4023213 is about 159.0465826093.

Adding to 4023213 its reverse (3123204), we get a palindrome (7146417).

Subtracting from 4023213 its reverse (3123204), we obtain a palindrome (900009).

The spelling of 4023213 in words is "four million, twenty-three thousand, two hundred thirteen".