503449 has 4 divisors (see below), whose sum is σ = 505780. Its totient is φ = 501120.

The previous prime is 503441. The next prime is 503453. The reversal of 503449 is 944305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944305 = 5 ⋅188861.

It can be written as a sum of positive squares in 2 ways, for example, as 413449 + 90000 = 643^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 503449 - 2³ = 503441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503441) 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, 804 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (126445).

2⁵⁰³⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

503449 is a deficient number, since it is larger than the sum of its proper divisors (2331).

503449 is a wasteful number, since it uses less digits than its factorization.

503449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330.

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

The square root of 503449 is about 709.5414011881. The cubic root of 503449 is about 79.5521327825.

The spelling of 503449 in words is "five hundred three thousand, four hundred forty-nine".