4399403 has 4 divisors (see below), whose sum is σ = 4404480. Its totient is φ = 4394328.

The previous prime is 4399399. The next prime is 4399457. The reversal of 4399403 is 3049934.

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 not a de Polignac number, because 4399403 - 2² = 4399399 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4399403.

It is not an unprimeable number, because it can be changed into a prime (4399103) 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, 875 + ... + 3092.

It is an arithmetic number, because the mean of its divisors is an integer number (1101120).

Almost surely, 2^4399403 is an apocalyptic number.

4399403 is a deficient number, since it is larger than the sum of its proper divisors (5077).

4399403 is a wasteful number, since it uses less digits than its factorization.

4399403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 4399403 is about 2097.4753872215. The cubic root of 4399403 is about 163.8568426516.

The spelling of 4399403 in words is "four million, three hundred ninety-nine thousand, four hundred three".