411243491 has 2 divisors, whose sum is σ = 411243492. Its totient is φ = 411243490.

The previous prime is 411243487. The next prime is 411243509. The reversal of 411243491 is 194342114.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 411243491 - 2² = 411243487 is a prime.

It is not a weakly prime, because it can be changed into another prime (411263491) 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, 205621745 + 205621746.

It is an arithmetic number, because the mean of its divisors is an integer number (205621746).

Almost surely, 2^411243491 is an apocalyptic number.

411243491 is a deficient number, since it is larger than the sum of its proper divisors (1).

411243491 is an equidigital number, since it uses as much as digits as its factorization.

411243491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 411243491 is about 20279.1393061934. The cubic root of 411243491 is about 743.6461703232.

The spelling of 411243491 in words is "four hundred eleven million, two hundred forty-three thousand, four hundred ninety-one".