163873608 has 32 divisors (see below), whose sum is σ = 433784160. Its totient is φ = 51411200.

The previous prime is 163873601. The next prime is 163873637. The reversal of 163873608 is 806378361.

It is a self number, because there is not a number n which added to its sum of digits gives 163873608.

It is not an unprimeable number, because it can be changed into a prime (163873601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200418 + ... + 201233.

It is an arithmetic number, because the mean of its divisors is an integer number (13555755).

Almost surely, 2^163873608 is an apocalyptic number.

It is an amenable number.

163873608 is an abundant number, since it is smaller than the sum of its proper divisors (269910552).

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

163873608 is a wasteful number, since it uses less digits than its factorization.

163873608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401677 (or 401673 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 163873608 is about 12801.3127451836. The cubic root of 163873608 is about 547.2297150085.

The spelling of 163873608 in words is "one hundred sixty-three million, eight hundred seventy-three thousand, six hundred eight".