398827213241 has 2 divisors, whose sum is σ = 398827213242. Its totient is φ = 398827213240.

The previous prime is 398827213229. The next prime is 398827213261. The reversal of 398827213241 is 142312728893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383606809600 + 15220403641 = 619360^2 + 123371^2 .

It is a cyclic number.

It is not a de Polignac number, because 398827213241 - 2²⁶ = 398760104377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398827213241.

It is not a weakly prime, because it can be changed into another prime (398827213261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199413606620 + 199413606621.

It is an arithmetic number, because the mean of its divisors is an integer number (199413606621).

Almost surely, 2^398827213241 is an apocalyptic number.

It is an amenable number.

398827213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

398827213241 is an equidigital number, since it uses as much as digits as its factorization.

398827213241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The spelling of 398827213241 in words is "three hundred ninety-eight billion, eight hundred twenty-seven million, two hundred thirteen thousand, two hundred forty-one".