196444691 has 4 divisors (see below), whose sum is σ = 198469992. Its totient is φ = 194419392.

The previous prime is 196444621. The next prime is 196444751.

196444691 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 196444691 - 2²⁶ = 129335827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196444601) 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 3 ways as a sum of consecutive naturals, for example, 1012505 + ... + 1012698.

It is an arithmetic number, because the mean of its divisors is an integer number (49617498).

Almost surely, 2^196444691 is an apocalyptic number.

196444691 is a deficient number, since it is larger than the sum of its proper divisors (2025301).

196444691 is an equidigital number, since it uses as much as digits as its factorization.

196444691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025300.

The product of its digits is 186624, while the sum is 44.

The square root of 196444691 is about 14015.8728233385. The cubic root of 196444691 is about 581.3175467653.

The spelling of 196444691 in words is "one hundred ninety-six million, four hundred forty-four thousand, six hundred ninety-one".