190196789 has 2 divisors, whose sum is σ = 190196790. Its totient is φ = 190196788.

The previous prime is 190196779. The next prime is 190196843. The reversal of 190196789 is 987691091.

190196789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96687889 + 93508900 = 9833^2 + 9670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190196789 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190196759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95098394 + 95098395.

It is an arithmetic number, because the mean of its divisors is an integer number (95098395).

Almost surely, 2^190196789 is an apocalyptic number.

It is an amenable number.

190196789 is a deficient number, since it is larger than the sum of its proper divisors (1).

190196789 is an equidigital number, since it uses as much as digits as its factorization.

190196789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 50.

The square root of 190196789 is about 13791.1851919985. The cubic root of 190196789 is about 575.0881165525.

The spelling of 190196789 in words is "one hundred ninety million, one hundred ninety-six thousand, seven hundred eighty-nine".