104405663 has 2 divisors, whose sum is σ = 104405664. Its totient is φ = 104405662.

The previous prime is 104405647. The next prime is 104405681. The reversal of 104405663 is 366504401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104405663 - 2⁴ = 104405647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104405603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52202831 + 52202832.

It is an arithmetic number, because the mean of its divisors is an integer number (52202832).

Almost surely, 2^104405663 is an apocalyptic number.

104405663 is a deficient number, since it is larger than the sum of its proper divisors (1).

104405663 is an equidigital number, since it uses as much as digits as its factorization.

104405663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 104405663 is about 10217.9089348066. The cubic root of 104405663 is about 470.8775862410.

The spelling of 104405663 in words is "one hundred four million, four hundred five thousand, six hundred sixty-three".