197799984 has 30 divisors (see below), whose sum is σ = 553565636. Its totient is φ = 65933280.

The previous prime is 197799971. The next prime is 197799989. The reversal of 197799984 is 489997791.

It is not an unprimeable number, because it can be changed into a prime (197799989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 686662 + ... + 686949.

Almost surely, 2^197799984 is an apocalyptic number.

It is an amenable number.

197799984 is an abundant number, since it is smaller than the sum of its proper divisors (355765652).

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

197799984 is a wasteful number, since it uses less digits than its factorization.

197799984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373625 (or 1373616 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 63.

The square root of 197799984 is about 14064.1382245767. The cubic root of 197799984 is about 582.6513414959.

The spelling of 197799984 in words is "one hundred ninety-seven million, seven hundred ninety-nine thousand, nine hundred eighty-four".