503873369 has 4 divisors (see below), whose sum is σ = 530393040. Its totient is φ = 477353700.

The previous prime is 503873341. The next prime is 503873371. The reversal of 503873369 is 963378305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503873369 - 2⁸ = 503873113 is a prime.

It is a super-2 number, since 2×503873369² = 507776743974820322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (503873339) 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, 13259807 + ... + 13259844.

It is an arithmetic number, because the mean of its divisors is an integer number (132598260).

Almost surely, 2^503873369 is an apocalyptic number.

It is an amenable number.

503873369 is a deficient number, since it is larger than the sum of its proper divisors (26519671).

503873369 is a wasteful number, since it uses less digits than its factorization.

503873369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26519670.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 503873369 is about 22447.1238469431. The cubic root of 503873369 is about 795.7447862620.

The spelling of 503873369 in words is "five hundred three million, eight hundred seventy-three thousand, three hundred sixty-nine".