163879946 has 8 divisors (see below), whose sum is σ = 245879364. Its totient is φ = 81920160.

The previous prime is 163879927. The next prime is 163879951. The reversal of 163879946 is 649978361.

It can be written as a sum of positive squares in 2 ways, for example, as 119137225 + 44742721 = 10915^2 + 6689^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796 + ... + 18728.

Almost surely, 2^163879946 is an apocalyptic number.

163879946 is a deficient number, since it is larger than the sum of its proper divisors (81999418).

163879946 is a wasteful number, since it uses less digits than its factorization.

163879946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19816.

The product of its digits is 1959552, while the sum is 53.

The square root of 163879946 is about 12801.5602955265. The cubic root of 163879946 is about 547.2367698302.

The spelling of 163879946 in words is "one hundred sixty-three million, eight hundred seventy-nine thousand, nine hundred forty-six".