196091663 has 2 divisors, whose sum is σ = 196091664. Its totient is φ = 196091662.

The previous prime is 196091659. The next prime is 196091669. The reversal of 196091663 is 366190691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196091663 - 2² = 196091659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196091663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196091669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98045831 + 98045832.

It is an arithmetic number, because the mean of its divisors is an integer number (98045832).

Almost surely, 2^196091663 is an apocalyptic number.

196091663 is a deficient number, since it is larger than the sum of its proper divisors (1).

196091663 is an equidigital number, since it uses as much as digits as its factorization.

196091663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 196091663 is about 14003.2732959119. The cubic root of 196091663 is about 580.9691120885.

The spelling of 196091663 in words is "one hundred ninety-six million, ninety-one thousand, six hundred sixty-three".