104505691 has 2 divisors, whose sum is σ = 104505692. Its totient is φ = 104505690.

The previous prime is 104505683. The next prime is 104505701. The reversal of 104505691 is 196505401.

It is a weak prime.

It is an emirp because it is prime and its reverse (196505401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104505691 - 2³ = 104505683 is a prime.

It is not a weakly prime, because it can be changed into another prime (104505671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52252845 + 52252846.

It is an arithmetic number, because the mean of its divisors is an integer number (52252846).

Almost surely, 2^104505691 is an apocalyptic number.

104505691 is a deficient number, since it is larger than the sum of its proper divisors (1).

104505691 is an equidigital number, since it uses as much as digits as its factorization.

104505691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 104505691 is about 10222.8025022496. The cubic root of 104505691 is about 471.0279162385.

The spelling of 104505691 in words is "one hundred four million, five hundred five thousand, six hundred ninety-one".