398313 has 6 divisors (see below), whose sum is σ = 575354. Its totient is φ = 265536.

The previous prime is 398311. The next prime is 398323. The reversal of 398313 is 313893.

It can be written as a sum of positive squares in only one way, i.e., 393129 + 5184 = 627^2 + 72^2 .

It is not a de Polignac number, because 398313 - 2¹ = 398311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22120 + ... + 22137.

2³⁹⁸³¹³ is an apocalyptic number.

It is an amenable number.

398313 is a deficient number, since it is larger than the sum of its proper divisors (177041).

398313 is a wasteful number, since it uses less digits than its factorization.

398313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44263 (or 44260 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 398313 is about 631.1204322473. The cubic root of 398313 is about 73.5769013250.

The spelling of 398313 in words is "three hundred ninety-eight thousand, three hundred thirteen".