104821663 has 2 divisors, whose sum is σ = 104821664. Its totient is φ = 104821662.

The previous prime is 104821637. The next prime is 104821667. The reversal of 104821663 is 366128401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104821663 - 2¹⁷ = 104690591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104821667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52410831 + 52410832.

It is an arithmetic number, because the mean of its divisors is an integer number (52410832).

Almost surely, 2^104821663 is an apocalyptic number.

104821663 is a deficient number, since it is larger than the sum of its proper divisors (1).

104821663 is an equidigital number, since it uses as much as digits as its factorization.

104821663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 104821663 is about 10238.2451132994. The cubic root of 104821663 is about 471.5021548047.

The spelling of 104821663 in words is "one hundred four million, eight hundred twenty-one thousand, six hundred sixty-three".