163897472 has 32 divisors (see below), whose sum is σ = 327130320. Its totient is φ = 81794304.

The previous prime is 163897463. The next prime is 163897529. The reversal of 163897472 is 274798361.

163897472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99923 + ... + 101549.

Almost surely, 2^163897472 is an apocalyptic number.

It is an amenable number.

163897472 is a deficient number, since it is larger than the sum of its proper divisors (163232848).

163897472 is an equidigital number, since it uses as much as digits as its factorization.

163897472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428 (or 2416 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 163897472 is about 12802.2448031585. The cubic root of 163897472 is about 547.2562770568.

The spelling of 163897472 in words is "one hundred sixty-three million, eight hundred ninety-seven thousand, four hundred seventy-two".