475818841 has 2 divisors, whose sum is σ = 475818842. Its totient is φ = 475818840.

The previous prime is 475818839. The next prime is 475818851. The reversal of 475818841 is 148818574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417998025 + 57820816 = 20445^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 475818841 - 2¹ = 475818839 is a prime.

Together with 475818839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 475818791 and 475818800.

It is not a weakly prime, because it can be changed into another prime (475818851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237909420 + 237909421.

It is an arithmetic number, because the mean of its divisors is an integer number (237909421).

Almost surely, 2^475818841 is an apocalyptic number.

It is an amenable number.

475818841 is a deficient number, since it is larger than the sum of its proper divisors (1).

475818841 is an equidigital number, since it uses as much as digits as its factorization.

475818841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 286720, while the sum is 46.

The square root of 475818841 is about 21813.2721296004. The cubic root of 475818841 is about 780.6934666720.

The spelling of 475818841 in words is "four hundred seventy-five million, eight hundred eighteen thousand, eight hundred forty-one".