398213127 has 12 divisors (see below), whose sum is σ = 619442824. Its totient is φ = 245054160.

The previous prime is 398213119. The next prime is 398213173. The reversal of 398213127 is 721312893.

It is not a de Polignac number, because 398213127 - 2³ = 398213119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398213091 and 398213100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1701649 + ... + 1701882.

Almost surely, 2^398213127 is an apocalyptic number.

398213127 is a deficient number, since it is larger than the sum of its proper divisors (221229697).

398213127 is a wasteful number, since it uses less digits than its factorization.

398213127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403550 (or 3403547 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 398213127 is about 19955.2781739569. The cubic root of 398213127 is about 735.7075125366.

The spelling of 398213127 in words is "three hundred ninety-eight million, two hundred thirteen thousand, one hundred twenty-seven".