163788 has 12 divisors (see below), whose sum is σ = 382200. Its totient is φ = 54592.

The previous prime is 163781. The next prime is 163789. The reversal of 163788 is 887361.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (163781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (31850).

2¹⁶³⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

163788 is an abundant number, since it is smaller than the sum of its proper divisors (218412).

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

163788 is a wasteful number, since it uses less digits than its factorization.

163788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13656 (or 13654 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 163788 is about 404.7073016391. The cubic root of 163788 is about 54.7134407000.

The spelling of 163788 in words is "one hundred sixty-three thousand, seven hundred eighty-eight".