196236589 has 2 divisors, whose sum is σ = 196236590. Its totient is φ = 196236588.

The previous prime is 196236587. The next prime is 196236613. The reversal of 196236589 is 985632691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161036100 + 35200489 = 12690^2 + 5933^2 .

It is a cyclic number.

It is not a de Polignac number, because 196236589 - 2¹ = 196236587 is a prime.

Together with 196236587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196236587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98118294 + 98118295.

It is an arithmetic number, because the mean of its divisors is an integer number (98118295).

Almost surely, 2^196236589 is an apocalyptic number.

It is an amenable number.

196236589 is a deficient number, since it is larger than the sum of its proper divisors (1).

196236589 is an equidigital number, since it uses as much as digits as its factorization.

196236589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The square root of 196236589 is about 14008.4470588285. The cubic root of 196236589 is about 581.1122029846.

The spelling of 196236589 in words is "one hundred ninety-six million, two hundred thirty-six thousand, five hundred eighty-nine".