197189716 has 12 divisors (see below), whose sum is σ = 345492532. Its totient is φ = 98477568.

The previous prime is 197189693. The next prime is 197189723. The reversal of 197189716 is 617981791.

It can be written as a sum of positive squares in 2 ways, for example, as 70627216 + 126562500 = 8404^2 + 11250^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 197189716.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25485 + ... + 32308.

Almost surely, 2^197189716 is an apocalyptic number.

It is an amenable number.

197189716 is a deficient number, since it is larger than the sum of its proper divisors (148302816).

197189716 is a wasteful number, since it uses less digits than its factorization.

197189716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58650 (or 58648 counting only the distinct ones).

The product of its digits is 190512, while the sum is 49.

The square root of 197189716 is about 14042.4255739527. The cubic root of 197189716 is about 582.0515103419.

The spelling of 197189716 in words is "one hundred ninety-seven million, one hundred eighty-nine thousand, seven hundred sixteen".