197216488 has 16 divisors (see below), whose sum is σ = 422606880. Its totient is φ = 84521328.

The previous prime is 197216431. The next prime is 197216491. The reversal of 197216488 is 884612791.

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, 1760806 + ... + 1760917.

It is an arithmetic number, because the mean of its divisors is an integer number (26412930).

Almost surely, 2^197216488 is an apocalyptic number.

It is an amenable number.

197216488 is an abundant number, since it is smaller than the sum of its proper divisors (225390392).

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

197216488 is a wasteful number, since it uses less digits than its factorization.

197216488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521736 (or 3521732 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 197216488 is about 14043.3787957172. The cubic root of 197216488 is about 582.0778504206.

The spelling of 197216488 in words is "one hundred ninety-seven million, two hundred sixteen thousand, four hundred eighty-eight".