500406621 has 32 divisors (see below), whose sum is σ = 791683200. Its totient is φ = 277152000.

The previous prime is 500406617. The next prime is 500406631. The reversal of 500406621 is 126604005.

It is not a de Polignac number, because 500406621 - 2² = 500406617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500406591 and 500406600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500406631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37555 + ... + 49103.

It is an arithmetic number, because the mean of its divisors is an integer number (24740100).

Almost surely, 2^500406621 is an apocalyptic number.

It is an amenable number.

500406621 is a deficient number, since it is larger than the sum of its proper divisors (291276579).

500406621 is a wasteful number, since it uses less digits than its factorization.

500406621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11677.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 500406621 is about 22369.7702491554. The cubic root of 500406621 is about 793.9156245533.

The spelling of 500406621 in words is "five hundred million, four hundred six thousand, six hundred twenty-one".