197816164 has 48 divisors (see below), whose sum is σ = 428151808. Its totient is φ = 77874048.

The previous prime is 197816161. The next prime is 197816173. The reversal of 197816164 is 461618791.

197816164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197816164.

It is not an unprimeable number, because it can be changed into a prime (197816161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79954 + ... + 82390.

Almost surely, 2^197816164 is an apocalyptic number.

197816164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197816164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214075904).

197816164 is an abundant number, since it is smaller than the sum of its proper divisors (230335644).

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

197816164 is a wasteful number, since it uses less digits than its factorization.

197816164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684 (or 2682 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 197816164 is about 14064.7134346918. The cubic root of 197816164 is about 582.6672279847.

The spelling of 197816164 in words is "one hundred ninety-seven million, eight hundred sixteen thousand, one hundred sixty-four".