104040647 has 2 divisors, whose sum is σ = 104040648. Its totient is φ = 104040646.

The previous prime is 104040623. The next prime is 104040649. The reversal of 104040647 is 746040401.

It is a strong prime.

It is an emirp because it is prime and its reverse (746040401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104040647 is a prime.

Together with 104040649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104040649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52020323 + 52020324.

It is an arithmetic number, because the mean of its divisors is an integer number (52020324).

Almost surely, 2^104040647 is an apocalyptic number.

104040647 is a deficient number, since it is larger than the sum of its proper divisors (1).

104040647 is an equidigital number, since it uses as much as digits as its factorization.

104040647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 104040647 is about 10200.0317156370. The cubic root of 104040647 is about 470.3281953982.

The spelling of 104040647 in words is "one hundred four million, forty thousand, six hundred forty-seven".