4003423 has 2 divisors, whose sum is σ = 4003424. Its totient is φ = 4003422.

The previous prime is 4003397. The next prime is 4003427. The reversal of 4003423 is 3243004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4003423 - 2¹³ = 3995231 is a prime.

It is a super-3 number, since 3×4003423³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4003397 and 4003406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4003427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001711 + 2001712.

It is an arithmetic number, because the mean of its divisors is an integer number (2001712).

Almost surely, 2^4003423 is an apocalyptic number.

4003423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4003423 is an equidigital number, since it uses as much as digits as its factorization.

4003423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 4003423 is about 2000.8555670013. The cubic root of 4003423 is about 158.7853729017.

Adding to 4003423 its reverse (3243004), we get a palindrome (7246427).

The spelling of 4003423 in words is "four million, three thousand, four hundred twenty-three".