327899663 has 32 divisors (see below), whose sum is σ = 427392000. Its totient is φ = 244290816.

The previous prime is 327899659. The next prime is 327899669. The reversal of 327899663 is 366998723.

It is a Cunningham number, because it is equal to 18108²-1.

It is not a de Polignac number, because 327899663 - 2² = 327899659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327899669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343595 + ... + 344547.

It is an arithmetic number, because the mean of its divisors is an integer number (13356000).

Almost surely, 2^327899663 is an apocalyptic number.

327899663 is a deficient number, since it is larger than the sum of its proper divisors (99492337).

327899663 is a wasteful number, since it uses less digits than its factorization.

327899663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its digits is 2939328, while the sum is 53.

The square root of 327899663 is about 18107.9999723879. Note that the first 4 decimals coincide. The cubic root of 327899663 is about 689.5731189996.

The spelling of 327899663 in words is "three hundred twenty-seven million, eight hundred ninety-nine thousand, six hundred sixty-three".