104191697 has 2 divisors, whose sum is σ = 104191698. Its totient is φ = 104191696.

The previous prime is 104191663. The next prime is 104191723. The reversal of 104191697 is 796191401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 24196561 = 8944^2 + 4919^2 .

It is an emirp because it is prime and its reverse (796191401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104191697 - 2²² = 99997393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104191697.

It is not a weakly prime, because it can be changed into another prime (104191597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52095848 + 52095849.

It is an arithmetic number, because the mean of its divisors is an integer number (52095849).

Almost surely, 2^104191697 is an apocalyptic number.

It is an amenable number.

104191697 is a deficient number, since it is larger than the sum of its proper divisors (1).

104191697 is an equidigital number, since it uses as much as digits as its factorization.

104191697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 104191697 is about 10207.4334188375. The cubic root of 104191697 is about 470.5556985351. Note that the first 3 decimals are identical.

The spelling of 104191697 in words is "one hundred four million, one hundred ninety-one thousand, six hundred ninety-seven".