103905691 has 2 divisors, whose sum is σ = 103905692. Its totient is φ = 103905690.

The previous prime is 103905689. The next prime is 103905701. The reversal of 103905691 is 196509301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103905691 - 2¹ = 103905689 is a prime.

Together with 103905689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103935691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51952845 + 51952846.

It is an arithmetic number, because the mean of its divisors is an integer number (51952846).

Almost surely, 2^103905691 is an apocalyptic number.

103905691 is a deficient number, since it is larger than the sum of its proper divisors (1).

103905691 is an equidigital number, since it uses as much as digits as its factorization.

103905691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 103905691 is about 10193.4140993094. The cubic root of 103905691 is about 470.1247458221.

The spelling of 103905691 in words is "one hundred three million, nine hundred five thousand, six hundred ninety-one".