398486 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 177480.

The previous prime is 398477. The next prime is 398491. The reversal of 398486 is 684893.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

398486 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 7 ways as a sum of consecutive naturals, for example, 1145 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2³⁹⁸⁴⁸⁶ is an apocalyptic number.

398486 is a deficient number, since it is larger than the sum of its proper divisors (266794).

398486 is a wasteful number, since it uses less digits than its factorization.

398486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379.

The product of its digits is 41472, while the sum is 38.

The square root of 398486 is about 631.2574752033. The cubic root of 398486 is about 73.5875520457.

It can be divided in two parts, 3 and 98486, that added together give a palindrome (98489).

The spelling of 398486 in words is "three hundred ninety-eight thousand, four hundred eighty-six".