500411681 has 8 divisors (see below), whose sum is σ = 623889984. Its totient is φ = 389931120.

The previous prime is 500411657. The next prime is 500411687. The reversal of 500411681 is 186114005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500411681 is a prime.

It is a super-2 number, since 2×500411681² = 500823700962491522, which contains 22 as substring.

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 500411681.

It is not an unprimeable number, because it can be changed into a prime (500411687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3249350 + ... + 3249503.

It is an arithmetic number, because the mean of its divisors is an integer number (77986248).

Almost surely, 2^500411681 is an apocalyptic number.

It is an amenable number.

500411681 is a deficient number, since it is larger than the sum of its proper divisors (123478303).

500411681 is a wasteful number, since it uses less digits than its factorization.

500411681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498871.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 500411681 is about 22369.8833479301. The cubic root of 500411681 is about 793.9183005101.

Adding to 500411681 its reverse (186114005), we get a palindrome (686525686).

The spelling of 500411681 in words is "five hundred million, four hundred eleven thousand, six hundred eighty-one".