993636484 has 9 divisors (see below), whose sum is σ = 1738974181. Its totient is φ = 496786720.

The previous prime is 993636481. The next prime is 993636529. The reversal of 993636484 is 484636399.

The square root of 993636484 is 31522.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 631114884 + 362521600 = 25122^2 + 19040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993636481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55164 + ... + 70924.

Almost surely, 2^993636484 is an apocalyptic number.

993636484 is the 31522-nd square number.

It is an amenable number.

993636484 is a deficient number, since it is larger than the sum of its proper divisors (745337697).

993636484 is an frugal number, since it uses more digits than its factorization.

993636484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31526 (or 15763 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 52.

The cubic root of 993636484 is about 997.8743126550.

The spelling of 993636484 in words is "nine hundred ninety-three million, six hundred thirty-six thousand, four hundred eighty-four".