163885923 has 10 divisors (see below), whose sum is σ = 244817364. Its totient is φ = 109257228.

The previous prime is 163885919. The next prime is 163885927. The reversal of 163885923 is 329588361.

It is a happy number.

163885923 is a `hidden beast` number, since 1 + 638 + 8 + 5 + 9 + 2 + 3 = 666.

163885923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (163885919) and next prime (163885927).

It is not a de Polignac number, because 163885923 - 2² = 163885919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163885927) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1011561 + ... + 1011722.

Almost surely, 2^163885923 is an apocalyptic number.

163885923 is a deficient number, since it is larger than the sum of its proper divisors (80931441).

163885923 is an equidigital number, since it uses as much as digits as its factorization.

163885923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023295 (or 2023286 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 163885923 is about 12801.7937415036. The cubic root of 163885923 is about 547.2434226564.

The spelling of 163885923 in words is "one hundred sixty-three million, eight hundred eighty-five thousand, nine hundred twenty-three".