196338889 has 4 divisors (see below), whose sum is σ = 196420756. Its totient is φ = 196257024.

The previous prime is 196338859. The next prime is 196338893. The reversal of 196338889 is 988833691.

It is a happy number.

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 137663289 + 58675600 = 11733^2 + 7660^2 .

It is a cyclic number.

It is not a de Polignac number, because 196338889 - 2⁹ = 196338377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196338859) 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, 37224 + ... + 42169.

It is an arithmetic number, because the mean of its divisors is an integer number (49105189).

Almost surely, 2^196338889 is an apocalyptic number.

It is an amenable number.

196338889 is a deficient number, since it is larger than the sum of its proper divisors (81867).

196338889 is an equidigital number, since it uses as much as digits as its factorization.

196338889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81866.

The product of its digits is 2239488, while the sum is 55.

The square root of 196338889 is about 14012.0979514133. The cubic root of 196338889 is about 581.2131652150.

The spelling of 196338889 in words is "one hundred ninety-six million, three hundred thirty-eight thousand, eight hundred eighty-nine".