500636993 has 16 divisors (see below), whose sum is σ = 523635840. Its totient is φ = 478318464.

The previous prime is 500636987. The next prime is 500637013. The reversal of 500636993 is 399636005.

It is a cyclic number.

It is not a de Polignac number, because 500636993 - 2¹² = 500632897 is a prime.

It is a super-3 number, since 3×500636993³ (a number of 27 digits) contains 333 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 500636993.

It is not an unprimeable number, because it can be changed into a prime (500636963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320348 + ... + 321906.

It is an arithmetic number, because the mean of its divisors is an integer number (32727240).

Almost surely, 2^500636993 is an apocalyptic number.

500636993 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

500636993 is a deficient number, since it is larger than the sum of its proper divisors (22998847).

500636993 is a wasteful number, since it uses less digits than its factorization.

500636993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 500636993 is about 22374.9188378416. The cubic root of 500636993 is about 794.0374374039.

The spelling of 500636993 in words is "five hundred million, six hundred thirty-six thousand, nine hundred ninety-three".