398113105 has 8 divisors (see below), whose sum is σ = 514484712. Its totient is φ = 293991168.

The previous prime is 398113091. The next prime is 398113127. The reversal of 398113105 is 501311893.

It can be written as a sum of positive squares in 4 ways, for example, as 19927296 + 378185809 = 4464^2 + 19447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 398113105 - 2⁷ = 398112977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3062344 + ... + 3062473.

It is an arithmetic number, because the mean of its divisors is an integer number (64310589).

Almost surely, 2^398113105 is an apocalyptic number.

It is an amenable number.

398113105 is a deficient number, since it is larger than the sum of its proper divisors (116371607).

398113105 is a wasteful number, since it uses less digits than its factorization.

398113105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124835.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 398113105 is about 19952.7718625759. The cubic root of 398113105 is about 735.6459097634.

Adding to 398113105 its reverse (501311893), we get a palindrome (899424998).

The spelling of 398113105 in words is "three hundred ninety-eight million, one hundred thirteen thousand, one hundred five".