197216892 has 36 divisors (see below), whose sum is σ = 498954456. Its totient is φ = 65681760.

The previous prime is 197216879. The next prime is 197216893. The reversal of 197216892 is 298612791.

197216892 is digitally balanced in base 2 and base 3, because in such bases 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197216893) 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, 68098 + ... + 70934.

It is an arithmetic number, because the mean of its divisors is an integer number (13859846).

Almost surely, 2^197216892 is an apocalyptic number.

197216892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197216892 is an abundant number, since it is smaller than the sum of its proper divisors (301737564).

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

197216892 is a wasteful number, since it uses less digits than its factorization.

197216892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778 (or 4773 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 197216892 is about 14043.3931797127. The cubic root of 197216892 is about 582.0782478844.

The spelling of 197216892 in words is "one hundred ninety-seven million, two hundred sixteen thousand, eight hundred ninety-two".