411904421 has 2 divisors, whose sum is σ = 411904422. Its totient is φ = 411904420.

The previous prime is 411904417. The next prime is 411904433. The reversal of 411904421 is 124409114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362483521 + 49420900 = 19039^2 + 7030^2 .

It is a cyclic number.

It is not a de Polignac number, because 411904421 - 2² = 411904417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411904321) 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, 205952210 + 205952211.

It is an arithmetic number, because the mean of its divisors is an integer number (205952211).

Almost surely, 2^411904421 is an apocalyptic number.

It is an amenable number.

411904421 is a deficient number, since it is larger than the sum of its proper divisors (1).

411904421 is an equidigital number, since it uses as much as digits as its factorization.

411904421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 411904421 is about 20295.4285739425. The cubic root of 411904421 is about 744.0443407545.

The spelling of 411904421 in words is "four hundred eleven million, nine hundred four thousand, four hundred twenty-one".