663232033 has 8 divisors (see below), whose sum is σ = 703921320. Its totient is φ = 622728960.

The previous prime is 663232027. The next prime is 663232049. The reversal of 663232033 is 330232366.

It can be written as a sum of positive squares in 4 ways, for example, as 1096209 + 662135824 = 1047^2 + 25732^2 .

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-663232033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663231992 and 663232010.

It is not an unprimeable number, because it can be changed into a prime (663232013) 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, 39178 + ... + 53491.

It is an arithmetic number, because the mean of its divisors is an integer number (87990165).

Almost surely, 2^663232033 is an apocalyptic number.

It is an amenable number.

663232033 is a deficient number, since it is larger than the sum of its proper divisors (40689287).

663232033 is a wasteful number, since it uses less digits than its factorization.

663232033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93107.

The product of its (nonzero) digits is 11664, while the sum is 28.

The square root of 663232033 is about 25753.2916925196. The cubic root of 663232033 is about 872.0776665560.

Adding to 663232033 its reverse (330232366), we get a palindrome (993464399).

The spelling of 663232033 in words is "six hundred sixty-three million, two hundred thirty-two thousand, thirty-three".