663934233 has 48 divisors (see below), whose sum is σ = 977676480. Its totient is φ = 400353408.

The previous prime is 663934231. The next prime is 663934259. The reversal of 663934233 is 332439366.

663934233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663934233 - 2¹ = 663934231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 663934191 and 663934200.

It is not an unprimeable number, because it can be changed into a prime (663934231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2468023 + ... + 2468291.

It is an arithmetic number, because the mean of its divisors is an integer number (20368260).

Almost surely, 2^663934233 is an apocalyptic number.

It is an amenable number.

663934233 is a deficient number, since it is larger than the sum of its proper divisors (313742247).

663934233 is a wasteful number, since it uses less digits than its factorization.

663934233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 387 counting only the distinct ones).

The product of its digits is 209952, while the sum is 39.

The square root of 663934233 is about 25766.9212945590. The cubic root of 663934233 is about 872.3853300968.

The spelling of 663934233 in words is "six hundred sixty-three million, nine hundred thirty-four thousand, two hundred thirty-three".