398119689 has 12 divisors (see below), whose sum is σ = 627340272. Its totient is φ = 241284600.

The previous prime is 398119633. The next prime is 398119699. The reversal of 398119689 is 986911893.

It is not a de Polignac number, because 398119689 - 2⁹ = 398119177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398119699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2010607 + ... + 2010804.

It is an arithmetic number, because the mean of its divisors is an integer number (52278356).

Almost surely, 2^398119689 is an apocalyptic number.

It is an amenable number.

398119689 is a deficient number, since it is larger than the sum of its proper divisors (229220583).

398119689 is a wasteful number, since it uses less digits than its factorization.

398119689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021428 (or 4021425 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The square root of 398119689 is about 19952.9368515013. The cubic root of 398119689 is about 735.6499651151.

The spelling of 398119689 in words is "three hundred ninety-eight million, one hundred nineteen thousand, six hundred eighty-nine".