427503 has 4 divisors (see below), whose sum is σ = 570008. Its totient is φ = 285000.

The previous prime is 427477. The next prime is 427513. The reversal of 427503 is 305724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 427503 - 2⁶ = 427439 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427513) 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, 71248 + ... + 71253.

It is an arithmetic number, because the mean of its divisors is an integer number (142502).

2⁴²⁷⁵⁰³ is an apocalyptic number.

427503 is a deficient number, since it is larger than the sum of its proper divisors (142505).

427503 is a wasteful number, since it uses less digits than its factorization.

427503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142504.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 427503 is about 653.8371356844. The cubic root of 427503 is about 75.3320389437.

The spelling of 427503 in words is "four hundred twenty-seven thousand, five hundred three".