398883101 has 2 divisors, whose sum is σ = 398883102. Its totient is φ = 398883100.

The previous prime is 398883097. The next prime is 398883103. The reversal of 398883101 is 101388893.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387499225 + 11383876 = 19685^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 398883101 - 2² = 398883097 is a prime.

Together with 398883103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398883103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441550 + 199441551.

It is an arithmetic number, because the mean of its divisors is an integer number (199441551).

Almost surely, 2^398883101 is an apocalyptic number.

It is an amenable number.

398883101 is a deficient number, since it is larger than the sum of its proper divisors (1).

398883101 is an equidigital number, since it uses as much as digits as its factorization.

398883101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 398883101 is about 19972.0580061245. The cubic root of 398883101 is about 736.1198785957.

The spelling of 398883101 in words is "three hundred ninety-eight million, eight hundred eighty-three thousand, one hundred one".