421104329 has 2 divisors, whose sum is σ = 421104330. Its totient is φ = 421104328.

The previous prime is 421104319. The next prime is 421104367. The reversal of 421104329 is 923401124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304572304 + 116532025 = 17452^2 + 10795^2 .

It is a cyclic number.

It is not a de Polignac number, because 421104329 - 2¹² = 421100233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421104298 and 421104307.

It is not a weakly prime, because it can be changed into another prime (421104319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210552164 + 210552165.

It is an arithmetic number, because the mean of its divisors is an integer number (210552165).

Almost surely, 2^421104329 is an apocalyptic number.

It is an amenable number.

421104329 is a deficient number, since it is larger than the sum of its proper divisors (1).

421104329 is an equidigital number, since it uses as much as digits as its factorization.

421104329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 421104329 is about 20520.8267133661. The cubic root of 421104329 is about 749.5430276990.

The spelling of 421104329 in words is "four hundred twenty-one million, one hundred four thousand, three hundred twenty-nine".