197959680 has 224 divisors, whose sum is σ = 707745600. Its totient is φ = 52494336.

The previous prime is 197959661. The next prime is 197959687. The reversal of 197959680 is 86959791.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (197959687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105831 + ... + 1106009.

Almost surely, 2^197959680 is an apocalyptic number.

197959680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197959680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353872800).

197959680 is an abundant number, since it is smaller than the sum of its proper divisors (509785920).

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

197959680 is an equidigital number, since it uses as much as digits as its factorization.

197959680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 197959680 is about 14069.8144977110. The cubic root of 197959680 is about 582.8081026461.

The spelling of 197959680 in words is "one hundred ninety-seven million, nine hundred fifty-nine thousand, six hundred eighty".