163873836 has 54 divisors (see below), whose sum is σ = 481872300. Its totient is φ = 46820592.

The previous prime is 163873763. The next prime is 163873847. The reversal of 163873836 is 638378361.

163873836 is a `hidden beast` number, since 1 + 638 + 7 + 3 + 8 + 3 + 6 = 666.

163873836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163873791 and 163873800.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44686 + ... + 48213.

Almost surely, 2^163873836 is an apocalyptic number.

It is an amenable number.

163873836 is an abundant number, since it is smaller than the sum of its proper divisors (317998464).

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

163873836 is a wasteful number, since it uses less digits than its factorization.

163873836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92923 (or 92911 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 163873836 is about 12801.3216505172. The cubic root of 163873836 is about 547.2299687983.

The spelling of 163873836 in words is "one hundred sixty-three million, eight hundred seventy-three thousand, eight hundred thirty-six".