104480921 has 2 divisors, whose sum is σ = 104480922. Its totient is φ = 104480920.

The previous prime is 104480891. The next prime is 104480947. The reversal of 104480921 is 129084401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70375321 + 34105600 = 8389^2 + 5840^2 .

It is an emirp because it is prime and its reverse (129084401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104480921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104480021) 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, 52240460 + 52240461.

It is an arithmetic number, because the mean of its divisors is an integer number (52240461).

Almost surely, 2^104480921 is an apocalyptic number.

It is an amenable number.

104480921 is a deficient number, since it is larger than the sum of its proper divisors (1).

104480921 is an equidigital number, since it uses as much as digits as its factorization.

104480921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 104480921 is about 10221.5909231391. The cubic root of 104480921 is about 470.9906988605.

The spelling of 104480921 in words is "one hundred four million, four hundred eighty thousand, nine hundred twenty-one".