197719968 has 48 divisors (see below), whose sum is σ = 520551360. Its totient is φ = 65711616.

The previous prime is 197719943. The next prime is 197719969. The reversal of 197719968 is 869917791.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (197719969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31596 + ... + 37332.

It is an arithmetic number, because the mean of its divisors is an integer number (10844820).

Almost surely, 2^197719968 is an apocalyptic number.

It is an amenable number.

197719968 is an abundant number, since it is smaller than the sum of its proper divisors (322831392).

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

197719968 is a wasteful number, since it uses less digits than its factorization.

197719968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109 (or 6101 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 57.

The square root of 197719968 is about 14061.2932548895. The cubic root of 197719968 is about 582.5727642773.

It can be divided in two parts, 1977 and 19968, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 197719968 in words is "one hundred ninety-seven million, seven hundred nineteen thousand, nine hundred sixty-eight".