163836 has 48 divisors (see below), whose sum is σ = 446880. Its totient is φ = 51840.

The previous prime is 163819. The next prime is 163841. The reversal of 163836 is 638361.

163836 = T₇₅ + T₇₆ + ... + T₁₁₁.

163836 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976 + ... + 4016.

It is an arithmetic number, because the mean of its divisors is an integer number (9310).

2¹⁶³⁸³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223440).

163836 is an abundant number, since it is smaller than the sum of its proper divisors (283044).

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

163836 is a wasteful number, since it uses less digits than its factorization.

163836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 83 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 163836 is about 404.7665994126. The cubic root of 163836 is about 54.7187849838.

It can be divided in two parts, 163 and 836, that added together give a palindrome (999).

The spelling of 163836 in words is "one hundred sixty-three thousand, eight hundred thirty-six".