197944568 has 8 divisors (see below), whose sum is σ = 371146080. Its totient is φ = 98972280.

The previous prime is 197944553. The next prime is 197944619. The reversal of 197944568 is 865449791.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12371528 + ... + 12371543.

It is an arithmetic number, because the mean of its divisors is an integer number (46393260).

Almost surely, 2^197944568 is an apocalyptic number.

It is an amenable number.

197944568 is a deficient number, since it is larger than the sum of its proper divisors (173201512).

197944568 is a wasteful number, since it uses less digits than its factorization.

197944568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24743077 (or 24743073 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 197944568 is about 14069.2774512411. The cubic root of 197944568 is about 582.7932719827.

The spelling of 197944568 in words is "one hundred ninety-seven million, nine hundred forty-four thousand, five hundred sixty-eight".