398106 has 24 divisors (see below), whose sum is σ = 914004. Its totient is φ = 124800.

The previous prime is 398087. The next prime is 398113. The reversal of 398106 is 601893.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 19881 = 615^2 + 141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 398106.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398106.

It is an unprimeable number.

398106 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345 + ... + 956.

2³⁹⁸¹⁰⁶ is an apocalyptic number.

398106 is an abundant number, since it is smaller than the sum of its proper divisors (515898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398106 is a wasteful number, since it uses less digits than its factorization.

398106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 398106 is about 630.9564168784. The cubic root of 398106 is about 73.5641533457.

Adding to 398106 its reverse (601893), we get a palindrome (999999).

The spelling of 398106 in words is "three hundred ninety-eight thousand, one hundred six".