104643613 has 2 divisors, whose sum is σ = 104643614. Its totient is φ = 104643612.

The previous prime is 104643599. The next prime is 104643641. The reversal of 104643613 is 316346401.

It is an a-pointer prime, because the next prime (104643641) can be obtained adding 104643613 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85045284 + 19598329 = 9222^2 + 4427^2 .

It is a cyclic number.

It is not a de Polignac number, because 104643613 - 2⁹ = 104643101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104643683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52321806 + 52321807.

It is an arithmetic number, because the mean of its divisors is an integer number (52321807).

Almost surely, 2^104643613 is an apocalyptic number.

It is an amenable number.

104643613 is a deficient number, since it is larger than the sum of its proper divisors (1).

104643613 is an equidigital number, since it uses as much as digits as its factorization.

104643613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 104643613 is about 10229.5460798610. The cubic root of 104643613 is about 471.2350391018.

The spelling of 104643613 in words is "one hundred four million, six hundred forty-three thousand, six hundred thirteen".