196908665 has 8 divisors (see below), whose sum is σ = 240295680. Its totient is φ = 154856752.

The previous prime is 196908643. The next prime is 196908689. The reversal of 196908665 is 566809691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196908665 - 2⁶ = 196908601 is a prime.

It is an unprimeable number.

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, 333449 + ... + 334038.

It is an arithmetic number, because the mean of its divisors is an integer number (30036960).

Almost surely, 2^196908665 is an apocalyptic number.

It is an amenable number.

196908665 is a deficient number, since it is larger than the sum of its proper divisors (43387015).

196908665 is an equidigital number, since it uses as much as digits as its factorization.

196908665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667551.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 196908665 is about 14032.4147957506. The cubic root of 196908665 is about 581.7748496337.

The spelling of 196908665 in words is "one hundred ninety-six million, nine hundred eight thousand, six hundred sixty-five".