503927428 has 6 divisors (see below), whose sum is σ = 881873006. Its totient is φ = 251963712.

The previous prime is 503927407. The next prime is 503927497. The reversal of 503927428 is 824729305.

It can be written as a sum of positive squares in only one way, i.e., 447407104 + 56520324 = 21152^2 + 7518^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62990925 + ... + 62990932.

Almost surely, 2^503927428 is an apocalyptic number.

It is an amenable number.

503927428 is a deficient number, since it is larger than the sum of its proper divisors (377945578).

503927428 is a wasteful number, since it uses less digits than its factorization.

503927428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125981861 (or 125981859 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 503927428 is about 22448.3279555516. The cubic root of 503927428 is about 795.7732429019.

The spelling of 503927428 in words is "five hundred three million, nine hundred twenty-seven thousand, four hundred twenty-eight".