411520871 has 2 divisors, whose sum is σ = 411520872. Its totient is φ = 411520870.

The previous prime is 411520843. The next prime is 411520873. The reversal of 411520871 is 178025114.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 411520871 - 2¹⁴ = 411504487 is a prime.

Together with 411520873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411520873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205760435 + 205760436.

It is an arithmetic number, because the mean of its divisors is an integer number (205760436).

Almost surely, 2^411520871 is an apocalyptic number.

411520871 is a deficient number, since it is larger than the sum of its proper divisors (1).

411520871 is an equidigital number, since it uses as much as digits as its factorization.

411520871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 411520871 is about 20285.9772010125. The cubic root of 411520871 is about 743.8133269431.

Adding to 411520871 its reverse (178025114), we get a palindrome (589545985).

The spelling of 411520871 in words is "four hundred eleven million, five hundred twenty thousand, eight hundred seventy-one".