4049503 has 4 divisors (see below), whose sum is σ = 4054408. Its totient is φ = 4044600.

The previous prime is 4049497. The next prime is 4049533. The reversal of 4049503 is 3059404.

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 4049503 - 2⁵ = 4049471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049533) 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, 876 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (1013602).

Almost surely, 2^4049503 is an apocalyptic number.

4049503 is a deficient number, since it is larger than the sum of its proper divisors (4905).

4049503 is a wasteful number, since it uses less digits than its factorization.

4049503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4049503 is about 2012.3376953186. The cubic root of 4049503 is about 159.3922648476.

Subtracting from 4049503 its reverse (3059404), we obtain a palindrome (990099).

The spelling of 4049503 in words is "four million, forty-nine thousand, five hundred three".