503978 has 8 divisors (see below), whose sum is σ = 768960. Its totient is φ = 247660.

The previous prime is 503969. The next prime is 503983. The reversal of 503978 is 879305.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (96120).

2⁵⁰³⁹⁷⁸ is an apocalyptic number.

503978 is a deficient number, since it is larger than the sum of its proper divisors (264982).

503978 is a wasteful number, since it uses less digits than its factorization.

503978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 503978 is about 709.9140793082. The cubic root of 503978 is about 79.5799862144.

It can be divided in two parts, 50397 and 8, that added together give a palindrome (50405).

The spelling of 503978 in words is "five hundred three thousand, nine hundred seventy-eight".