663094633 has 4 divisors (see below), whose sum is σ = 669178180. Its totient is φ = 657011088.

The previous prime is 663094613. The next prime is 663094643. The reversal of 663094633 is 336490366.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472323289 + 190771344 = 21733^2 + 13812^2 .

It is a cyclic number.

It is not a de Polignac number, because 663094633 - 2²¹ = 660997481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663094603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041610 + ... + 3041827.

It is an arithmetic number, because the mean of its divisors is an integer number (167294545).

Almost surely, 2^663094633 is an apocalyptic number.

It is an amenable number.

663094633 is a deficient number, since it is larger than the sum of its proper divisors (6083547).

663094633 is a wasteful number, since it uses less digits than its factorization.

663094633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083546.

The product of its (nonzero) digits is 209952, while the sum is 40.

The square root of 663094633 is about 25750.6239341885. The cubic root of 663094633 is about 872.0174404004.

The spelling of 663094633 in words is "six hundred sixty-three million, ninety-four thousand, six hundred thirty-three".