500643461 has 16 divisors (see below), whose sum is σ = 531148800. Its totient is φ = 470918448.

The previous prime is 500643439. The next prime is 500643469. The reversal of 500643461 is 164346005.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 500643461 - 2¹⁰ = 500642437 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 (500643469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688280 + ... + 689006.

It is an arithmetic number, because the mean of its divisors is an integer number (33196800).

Almost surely, 2^500643461 is an apocalyptic number.

It is an amenable number.

500643461 is a deficient number, since it is larger than the sum of its proper divisors (30505339).

500643461 is a wasteful number, since it uses less digits than its factorization.

500643461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 500643461 is about 22375.0633742119. The cubic root of 500643461 is about 794.0408569221.

Adding to 500643461 its reverse (164346005), we get a palindrome (664989466).

The spelling of 500643461 in words is "five hundred million, six hundred forty-three thousand, four hundred sixty-one".