500985941 has 4 divisors (see below), whose sum is σ = 501037632. Its totient is φ = 500934252.

The previous prime is 500985913. The next prime is 500985943. The reversal of 500985941 is 149589005.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 149589005 = 5 ⋅29917801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500985941 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 (500985943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (125259408).

Almost surely, 2^500985941 is an apocalyptic number.

500985941 is the 12923-rd octagonal number.

It is an amenable number.

500985941 is a deficient number, since it is larger than the sum of its proper divisors (51691).

500985941 is a wasteful number, since it uses less digits than its factorization.

500985941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51690.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 500985941 is about 22382.7152284972. The cubic root of 500985941 is about 794.2218780461.

The spelling of 500985941 in words is "five hundred million, nine hundred eighty-five thousand, nine hundred forty-one".