398473 has 2 divisors, whose sum is σ = 398474. Its totient is φ = 398472.

The previous prime is 398471. The next prime is 398477. The reversal of 398473 is 374893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327184 + 71289 = 572^2 + 267^2 .

It is an emirp because it is prime and its reverse (374893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398473 - 2¹ = 398471 is a prime.

Together with 398471, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199236 + 199237.

It is an arithmetic number, because the mean of its divisors is an integer number (199237).

2³⁹⁸⁴⁷³ is an apocalyptic number.

It is an amenable number.

398473 is a deficient number, since it is larger than the sum of its proper divisors (1).

398473 is an equidigital number, since it uses as much as digits as its factorization.

398473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 398473 is about 631.2471782115. The cubic root of 398473 is about 73.5867518097.

The spelling of 398473 in words is "three hundred ninety-eight thousand, four hundred seventy-three".