104369921 has 2 divisors, whose sum is σ = 104369922. Its totient is φ = 104369920.

The previous prime is 104369897. The next prime is 104369971. The reversal of 104369921 is 129963401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100801600 + 3568321 = 10040^2 + 1889^2 .

It is a cyclic number.

It is not a de Polignac number, because 104369921 - 2⁶ = 104369857 is a prime.

It is not a weakly prime, because it can be changed into another prime (104369971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52184960 + 52184961.

It is an arithmetic number, because the mean of its divisors is an integer number (52184961).

Almost surely, 2^104369921 is an apocalyptic number.

It is an amenable number.

104369921 is a deficient number, since it is larger than the sum of its proper divisors (1).

104369921 is an equidigital number, since it uses as much as digits as its factorization.

104369921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 104369921 is about 10216.1597971058. The cubic root of 104369921 is about 470.8238470500.

The spelling of 104369921 in words is "one hundred four million, three hundred sixty-nine thousand, nine hundred twenty-one".