163930443 has 4 divisors (see below), whose sum is σ = 218573928. Its totient is φ = 109286960.

The previous prime is 163930427. The next prime is 163930447. The reversal of 163930443 is 344039361.

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

It is a cyclic number.

It is not a de Polignac number, because 163930443 - 2⁴ = 163930427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163930447) 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, 27321738 + ... + 27321743.

It is an arithmetic number, because the mean of its divisors is an integer number (54643482).

Almost surely, 2^163930443 is an apocalyptic number.

163930443 is a deficient number, since it is larger than the sum of its proper divisors (54643485).

163930443 is an equidigital number, since it uses as much as digits as its factorization.

163930443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54643484.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 163930443 is about 12803.5324422598. The cubic root of 163930443 is about 547.2929714949.

The spelling of 163930443 in words is "one hundred sixty-three million, nine hundred thirty thousand, four hundred forty-three".