197712216 has 48 divisors (see below), whose sum is σ = 576663360. Its totient is φ = 60834240.

The previous prime is 197712191. The next prime is 197712217. The reversal of 197712216 is 612217791.

It is a happy number.

197712216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197712217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104680 + ... + 106551.

It is an arithmetic number, because the mean of its divisors is an integer number (12013820).

Almost surely, 2^197712216 is an apocalyptic number.

It is an amenable number.

197712216 is an abundant number, since it is smaller than the sum of its proper divisors (378951144).

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

197712216 is a wasteful number, since it uses less digits than its factorization.

197712216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211256 (or 211249 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 197712216 is about 14061.0176018665. The cubic root of 197712216 is about 582.5651505410.

The spelling of 197712216 in words is "one hundred ninety-seven million, seven hundred twelve thousand, two hundred sixteen".