503997 has 8 divisors (see below), whose sum is σ = 723744. Its totient is φ = 310128.

The previous prime is 503989. The next prime is 504001. The reversal of 503997 is 799305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503997 - 2³ = 503989 is a prime.

It is a super-3 number, since 3×503997³ = 384065333608823919, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6423 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (90468).

2⁵⁰³⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

503997 is a deficient number, since it is larger than the sum of its proper divisors (219747).

503997 is a wasteful number, since it uses less digits than its factorization.

503997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12939.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 503997 is about 709.9274610832. The cubic root of 503997 is about 79.5809862585.

The spelling of 503997 in words is "five hundred three thousand, nine hundred ninety-seven".