196788993 has 8 divisors (see below), whose sum is σ = 262526208. Its totient is φ = 131122224.

The previous prime is 196788979. The next prime is 196789009. The reversal of 196788993 is 399887691.

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

It is not a de Polignac number, because 196788993 - 2⁸ = 196788737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196088993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10705 + ... + 22542.

It is an arithmetic number, because the mean of its divisors is an integer number (32815776).

Almost surely, 2^196788993 is an apocalyptic number.

It is an amenable number.

196788993 is a deficient number, since it is larger than the sum of its proper divisors (65737215).

196788993 is a wasteful number, since it uses less digits than its factorization.

196788993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35223.

The product of its digits is 5878656, while the sum is 60.

The square root of 196788993 is about 14028.1500205836. The cubic root of 196788993 is about 581.6569671137.

The spelling of 196788993 in words is "one hundred ninety-six million, seven hundred eighty-eight thousand, nine hundred ninety-three".