503428437 has 12 divisors (see below), whose sum is σ = 750632064. Its totient is φ = 324792360.

The previous prime is 503428423. The next prime is 503428481. The reversal of 503428437 is 734824305.

It is a happy number.

503428437 is a `hidden beast` number, since 503 + 42 + 84 + 37 = 666.

It is not a de Polignac number, because 503428437 - 2⁷ = 503428309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503428337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901923 + ... + 902480.

It is an arithmetic number, because the mean of its divisors is an integer number (62552672).

Almost surely, 2^503428437 is an apocalyptic number.

It is an amenable number.

503428437 is a deficient number, since it is larger than the sum of its proper divisors (247203627).

503428437 is a wasteful number, since it uses less digits than its factorization.

503428437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804440 (or 1804437 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 503428437 is about 22437.2109897821. The cubic root of 503428437 is about 795.5104968523.

The spelling of 503428437 in words is "five hundred three million, four hundred twenty-eight thousand, four hundred thirty-seven".