504621 has 24 divisors (see below), whose sum is σ = 829920. Its totient is φ = 292896.

The previous prime is 504619. The next prime is 504631. The reversal of 504621 is 126405.

It is a happy number.

It is not a de Polignac number, because 504621 - 2¹ = 504619 is a prime.

It is a Curzon number.

504621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 504594 and 504603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2110 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

2⁵⁰⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

504621 is a deficient number, since it is larger than the sum of its proper divisors (325299).

504621 is a wasteful number, since it uses less digits than its factorization.

504621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 504621 is about 710.3668066570. The cubic root of 504621 is about 79.6138158556.

The spelling of 504621 in words is "five hundred four thousand, six hundred twenty-one".