104246809 has 2 divisors, whose sum is σ = 104246810. Its totient is φ = 104246808.

The previous prime is 104246789. The next prime is 104246843. The reversal of 104246809 is 908642401.

It is an a-pointer prime, because the next prime (104246843) can be obtained adding 104246809 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69672409 + 34574400 = 8347^2 + 5880^2 .

It is a cyclic number.

It is not a de Polignac number, because 104246809 - 2⁵ = 104246777 is a prime.

It is not a weakly prime, because it can be changed into another prime (104246869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52123404 + 52123405.

It is an arithmetic number, because the mean of its divisors is an integer number (52123405).

Almost surely, 2^104246809 is an apocalyptic number.

It is an amenable number.

104246809 is a deficient number, since it is larger than the sum of its proper divisors (1).

104246809 is an equidigital number, since it uses as much as digits as its factorization.

104246809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 104246809 is about 10210.1326631930. The cubic root of 104246809 is about 470.6386504250.

The spelling of 104246809 in words is "one hundred four million, two hundred forty-six thousand, eight hundred nine".