411921619 has 2 divisors, whose sum is σ = 411921620. Its totient is φ = 411921618.

The previous prime is 411921607. The next prime is 411921649. The reversal of 411921619 is 916129114.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 411921619 - 2⁷ = 411921491 is a prime.

It is a super-2 number, since 2×411921619² = 339358840399162322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (411921649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205960809 + 205960810.

It is an arithmetic number, because the mean of its divisors is an integer number (205960810).

Almost surely, 2^411921619 is an apocalyptic number.

411921619 is a deficient number, since it is larger than the sum of its proper divisors (1).

411921619 is an equidigital number, since it uses as much as digits as its factorization.

411921619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 411921619 is about 20295.8522609917. The cubic root of 411921619 is about 744.0546958238.

The spelling of 411921619 in words is "four hundred eleven million, nine hundred twenty-one thousand, six hundred nineteen".