4002323 has 4 divisors (see below), whose sum is σ = 4310208. Its totient is φ = 3694440.

The previous prime is 4002307. The next prime is 4002329. The reversal of 4002323 is 3232004.

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 4002323 - 2⁴ = 4002307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4002298 and 4002307.

It is not an unprimeable number, because it can be changed into a prime (4002329) 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, 153923 + ... + 153948.

It is an arithmetic number, because the mean of its divisors is an integer number (1077552).

Almost surely, 2^4002323 is an apocalyptic number.

4002323 is a deficient number, since it is larger than the sum of its proper divisors (307885).

4002323 is a wasteful number, since it uses less digits than its factorization.

4002323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307884.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 4002323 is about 2000.5806657068. The cubic root of 4002323 is about 158.7708286887.

Adding to 4002323 its reverse (3232004), we get a palindrome (7234327).

The spelling of 4002323 in words is "four million, two thousand, three hundred twenty-three".