163893794 has 16 divisors (see below), whose sum is σ = 257862528. Its totient is φ = 78034032.

The previous prime is 163893749. The next prime is 163893803. The reversal of 163893794 is 497398361.

It is a super-2 number, since 2×163893794² = 53722351423428872, which contains 22 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 20084 + ... + 27039.

It is an arithmetic number, because the mean of its divisors is an integer number (16116408).

Almost surely, 2^163893794 is an apocalyptic number.

163893794 is a deficient number, since it is larger than the sum of its proper divisors (93968734).

163893794 is a wasteful number, since it uses less digits than its factorization.

163893794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47209.

The product of its digits is 979776, while the sum is 50.

The square root of 163893794 is about 12802.1011556697. The cubic root of 163893794 is about 547.2521833926.

The spelling of 163893794 in words is "one hundred sixty-three million, eight hundred ninety-three thousand, seven hundred ninety-four".