196969691 has 8 divisors (see below), whose sum is σ = 206189568. Its totient is φ = 187929000.

The previous prime is 196969651. The next prime is 196969697.

196969691 is nontrivially palindromic in base 10.

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 196969691 - 2¹⁴ = 196953307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196969697) 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, 42545 + ... + 46946.

It is an arithmetic number, because the mean of its divisors is an integer number (25773696).

Almost surely, 2^196969691 is an apocalyptic number.

196969691 is a deficient number, since it is larger than the sum of its proper divisors (9219877).

196969691 is an equidigital number, since it uses as much as digits as its factorization.

196969691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89593.

The product of its digits is 1417176, while the sum is 56.

The square root of 196969691 is about 14034.5890926667. The cubic root of 196969691 is about 581.8349447119.

The spelling of 196969691 in words is "one hundred ninety-six million, nine hundred sixty-nine thousand, six hundred ninety-one".