196921768 has 32 divisors (see below), whose sum is σ = 394257600. Its totient is φ = 91986048.

The previous prime is 196921723. The next prime is 196921783. The reversal of 196921768 is 867129691.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4533 + ... + 20356.

It is an arithmetic number, because the mean of its divisors is an integer number (12320550).

Almost surely, 2^196921768 is an apocalyptic number.

It is an amenable number.

196921768 is an abundant number, since it is smaller than the sum of its proper divisors (197335832).

196921768 is a wasteful number, since it uses less digits than its factorization.

196921768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24961 (or 24957 counting only the distinct ones).

The product of its digits is 326592, while the sum is 49.

The square root of 196921768 is about 14032.8816712748. The cubic root of 196921768 is about 581.7877538005.

The spelling of 196921768 in words is "one hundred ninety-six million, nine hundred twenty-one thousand, seven hundred sixty-eight".