191696473 has 2 divisors, whose sum is σ = 191696474. Its totient is φ = 191696472.

The previous prime is 191696459. The next prime is 191696497. The reversal of 191696473 is 374696191.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146967129 + 44729344 = 12123^2 + 6688^2 .

It is an emirp because it is prime and its reverse (374696191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 191696473 - 2⁵ = 191696441 is a prime.

It is not a weakly prime, because it can be changed into another prime (191696413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95848236 + 95848237.

It is an arithmetic number, because the mean of its divisors is an integer number (95848237).

Almost surely, 2^191696473 is an apocalyptic number.

It is an amenable number.

191696473 is a deficient number, since it is larger than the sum of its proper divisors (1).

191696473 is an equidigital number, since it uses as much as digits as its factorization.

191696473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 191696473 is about 13845.4495412753. The cubic root of 191696473 is about 576.5956666163.

It can be divided in two parts, 1916 and 96473, that added together give a palindrome (98389).

The spelling of 191696473 in words is "one hundred ninety-one million, six hundred ninety-six thousand, four hundred seventy-three".