196964993 has 4 divisors (see below), whose sum is σ = 197446980. Its totient is φ = 196483008.

The previous prime is 196964981. The next prime is 196965007. The reversal of 196964993 is 399469691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185722384 + 11242609 = 13628^2 + 3353^2 .

It is a cyclic number.

It is not a de Polignac number, because 196964993 - 2²⁰ = 195916417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196964903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240380 + ... + 241197.

It is an arithmetic number, because the mean of its divisors is an integer number (49361745).

Almost surely, 2^196964993 is an apocalyptic number.

It is an amenable number.

196964993 is a deficient number, since it is larger than the sum of its proper divisors (481987).

196964993 is an equidigital number, since it uses as much as digits as its factorization.

196964993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481986.

The product of its digits is 2834352, while the sum is 56.

The square root of 196964993 is about 14034.4217194724. The cubic root of 196964993 is about 581.8303188186.

The spelling of 196964993 in words is "one hundred ninety-six million, nine hundred sixty-four thousand, nine hundred ninety-three".