398882859077 has 2 divisors, whose sum is σ = 398882859078. Its totient is φ = 398882859076.

The previous prime is 398882859071. The next prime is 398882859097. The reversal of 398882859077 is 770958288893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395044932676 + 3837926401 = 628526^2 + 61951^2 .

It is a cyclic number.

It is not a de Polignac number, because 398882859077 - 2¹⁰ = 398882858053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398882858995 and 398882859013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398882859071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441429538 + 199441429539.

It is an arithmetic number, because the mean of its divisors is an integer number (199441429539).

Almost surely, 2^398882859077 is an apocalyptic number.

It is an amenable number.

398882859077 is a deficient number, since it is larger than the sum of its proper divisors (1).

398882859077 is an equidigital number, since it uses as much as digits as its factorization.

398882859077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 487710720, while the sum is 74.

The spelling of 398882859077 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, eight hundred fifty-nine thousand, seventy-seven".