411909919 has 2 divisors, whose sum is σ = 411909920. Its totient is φ = 411909918.

The previous prime is 411909917. The next prime is 411909923. The reversal of 411909919 is 919909114.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 411909919 - 2¹ = 411909917 is a prime.

It is a super-2 number, since 2×411909919² = 339339562741173122, which contains 22 as substring.

Together with 411909917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411909913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205954959 + 205954960.

It is an arithmetic number, because the mean of its divisors is an integer number (205954960).

Almost surely, 2^411909919 is an apocalyptic number.

411909919 is a deficient number, since it is larger than the sum of its proper divisors (1).

411909919 is an equidigital number, since it uses as much as digits as its factorization.

411909919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 43.

The square root of 411909919 is about 20295.5640227120. The cubic root of 411909919 is about 744.0476511807.

The spelling of 411909919 in words is "four hundred eleven million, nine hundred nine thousand, nine hundred nineteen".