4321403 has 4 divisors (see below), whose sum is σ = 4325880. Its totient is φ = 4316928.

The previous prime is 4321397. The next prime is 4321411. The reversal of 4321403 is 3041234.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4321403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4321483) 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, 125 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (1081470).

Almost surely, 2^4321403 is an apocalyptic number.

4321403 is a deficient number, since it is larger than the sum of its proper divisors (4477).

4321403 is a wasteful number, since it uses less digits than its factorization.

4321403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4321403 is about 2078.7984510289. The cubic root of 4321403 is about 162.8826862351.

Adding to 4321403 its reverse (3041234), we get a palindrome (7362637).

The spelling of 4321403 in words is "four million, three hundred twenty-one thousand, four hundred three".