398882184377 has 2 divisors, whose sum is σ = 398882184378. Its totient is φ = 398882184376.

The previous prime is 398882184359. The next prime is 398882184461. The reversal of 398882184377 is 773481288893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212088801961 + 186793382416 = 460531^2 + 432196^2 .

It is a cyclic number.

It is not a de Polignac number, because 398882184377 - 2⁸ = 398882184121 is a prime.

It is not a weakly prime, because it can be changed into another prime (398882184277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441092188 + 199441092189.

It is an arithmetic number, because the mean of its divisors is an integer number (199441092189).

Almost surely, 2^398882184377 is an apocalyptic number.

It is an amenable number.

398882184377 is a deficient number, since it is larger than the sum of its proper divisors (1).

398882184377 is an equidigital number, since it uses as much as digits as its factorization.

398882184377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 130056192, while the sum is 68.

The spelling of 398882184377 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, one hundred eighty-four thousand, three hundred seventy-seven".