197798488 has 32 divisors (see below), whose sum is σ = 376047360. Its totient is φ = 97528480.

The previous prime is 197798483. The next prime is 197798509. The reversal of 197798488 is 884897791.

It is a happy number.

It is a super-2 number, since 2×197798488² = 78248483710172288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197798483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265845 + ... + 266587.

It is an arithmetic number, because the mean of its divisors is an integer number (11751480).

Almost surely, 2^197798488 is an apocalyptic number.

It is an amenable number.

197798488 is a deficient number, since it is larger than the sum of its proper divisors (178248872).

197798488 is a wasteful number, since it uses less digits than its factorization.

197798488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1163 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 61.

The square root of 197798488 is about 14064.0850395609. The cubic root of 197798488 is about 582.6498725902.

The spelling of 197798488 in words is "one hundred ninety-seven million, seven hundred ninety-eight thousand, four hundred eighty-eight".