426503 has 16 divisors (see below), whose sum is σ = 552960. Its totient is φ = 319200.

The previous prime is 426487. The next prime is 426527. The reversal of 426503 is 305624.

It is not a de Polignac number, because 426503 - 2⁴ = 426487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (34560).

2⁴²⁶⁵⁰³ is an apocalyptic number.

426503 is a deficient number, since it is larger than the sum of its proper divisors (126457).

426503 is a wasteful number, since it uses less digits than its factorization.

426503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 426503 is about 653.0719715315. The cubic root of 426503 is about 75.2732550650.

It can be divided in two parts, 426 and 503, that added together give a palindrome (929).

The spelling of 426503 in words is "four hundred twenty-six thousand, five hundred three".