163897608 has 32 divisors (see below), whose sum is σ = 468279360. Its totient is φ = 46827840.

The previous prime is 163897603. The next prime is 163897633. The reversal of 163897608 is 806798361.

163897608 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (163897603) 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, 487623 + ... + 487958.

It is an arithmetic number, because the mean of its divisors is an integer number (14633730).

Almost surely, 2^163897608 is an apocalyptic number.

It is an amenable number.

163897608 is an abundant number, since it is smaller than the sum of its proper divisors (304381752).

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

163897608 is a wasteful number, since it uses less digits than its factorization.

163897608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975597 (or 975593 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 163897608 is about 12802.2501147259. The cubic root of 163897608 is about 547.2564284255.

The spelling of 163897608 in words is "one hundred sixty-three million, eight hundred ninety-seven thousand, six hundred eight".