196197872 has 40 divisors (see below), whose sum is σ = 410223744. Its totient is φ = 90365184.

The previous prime is 196197839. The next prime is 196197877. The reversal of 196197872 is 278791691.

It is a self number, because there is not a number n which added to its sum of digits gives 196197872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196197877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178958 + ... + 180050.

Almost surely, 2^196197872 is an apocalyptic number.

It is an amenable number.

196197872 is an abundant number, since it is smaller than the sum of its proper divisors (214025872).

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

196197872 is a wasteful number, since it uses less digits than its factorization.

196197872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1971 counting only the distinct ones).

The product of its digits is 381024, while the sum is 50.

The square root of 196197872 is about 14007.0650744544. The cubic root of 196197872 is about 581.0739831312.

The spelling of 196197872 in words is "one hundred ninety-six million, one hundred ninety-seven thousand, eight hundred seventy-two".