411912421 has 2 divisors, whose sum is σ = 411912422. Its totient is φ = 411912420.

The previous prime is 411912409. The next prime is 411912427. The reversal of 411912421 is 124219114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411521796 + 390625 = 20286^2 + 625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411912421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411912427) 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, 205956210 + 205956211.

It is an arithmetic number, because the mean of its divisors is an integer number (205956211).

Almost surely, 2^411912421 is an apocalyptic number.

It is an amenable number.

411912421 is a deficient number, since it is larger than the sum of its proper divisors (1).

411912421 is an equidigital number, since it uses as much as digits as its factorization.

411912421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 411912421 is about 20295.6256617036. The cubic root of 411912421 is about 744.0491576617.

The spelling of 411912421 in words is "four hundred eleven million, nine hundred twelve thousand, four hundred twenty-one".