398883448841 has 2 divisors, whose sum is σ = 398883448842. Its totient is φ = 398883448840.

The previous prime is 398883448757. The next prime is 398883448867. The reversal of 398883448841 is 148844388893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394169253241 + 4714195600 = 627829^2 + 68660^2 .

It is an emirp because it is prime and its reverse (148844388893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398883448841 - 2³⁴ = 381703579657 is a prime.

It is not a weakly prime, because it can be changed into another prime (398883448441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441724420 + 199441724421.

It is an arithmetic number, because the mean of its divisors is an integer number (199441724421).

Almost surely, 2^398883448841 is an apocalyptic number.

It is an amenable number.

398883448841 is a deficient number, since it is larger than the sum of its proper divisors (1).

398883448841 is an equidigital number, since it uses as much as digits as its factorization.

398883448841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169869312, while the sum is 68.

The spelling of 398883448841 in words is "three hundred ninety-eight billion, eight hundred eighty-three million, four hundred forty-eight thousand, eight hundred forty-one".