163847994 has 8 divisors (see below), whose sum is σ = 327696000. Its totient is φ = 54615996.

The previous prime is 163847987. The next prime is 163848007. The reversal of 163847994 is 499748361.

163847994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

163847994 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13653994 + ... + 13654005.

It is an arithmetic number, because the mean of its divisors is an integer number (40962000).

Almost surely, 2^163847994 is an apocalyptic number.

163847994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163847994 is a wasteful number, since it uses less digits than its factorization.

163847994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27308004.

The product of its digits is 1306368, while the sum is 51.

The square root of 163847994 is about 12800.3122618161. The cubic root of 163847994 is about 547.2012022369.

The spelling of 163847994 in words is "one hundred sixty-three million, eight hundred forty-seven thousand, nine hundred ninety-four".