163804 has 12 divisors (see below), whose sum is σ = 296128. Its totient is φ = 79200.

The previous prime is 163789. The next prime is 163811. The reversal of 163804 is 408361.

It is a congruent number.

It is an unprimeable number.

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, 537 + ... + 784.

2¹⁶³⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

163804 is a deficient number, since it is larger than the sum of its proper divisors (132324).

163804 is a wasteful number, since it uses less digits than its factorization.

163804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1354 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 163804 is about 404.7270685289. The cubic root of 163804 is about 54.7152222440.

It can be divided in two parts, 16380 and 4, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 163804 in words is "one hundred sixty-three thousand, eight hundred four".