329433663 has 16 divisors (see below), whose sum is σ = 475166720. Its totient is φ = 201813984.

The previous prime is 329433661. The next prime is 329433673. The reversal of 329433663 is 366334923.

It is not a de Polignac number, because 329433663 - 2¹ = 329433661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329433661) 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, 10243 + ... + 27636.

It is an arithmetic number, because the mean of its divisors is an integer number (29697920).

Almost surely, 2^329433663 is an apocalyptic number.

329433663 is a deficient number, since it is larger than the sum of its proper divisors (145733057).

329433663 is a wasteful number, since it uses less digits than its factorization.

329433663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38118.

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

The square root of 329433663 is about 18150.3075180560. The cubic root of 329433663 is about 690.6467806457.

The spelling of 329433663 in words is "three hundred twenty-nine million, four hundred thirty-three thousand, six hundred sixty-three".