398273 has 2 divisors, whose sum is σ = 398274. Its totient is φ = 398272.

The previous prime is 398267. The next prime is 398287. The reversal of 398273 is 372893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300304 + 97969 = 548^2 + 313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398273 is a prime.

It is not a weakly prime, because it can be changed into another prime (398213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199136 + 199137.

It is an arithmetic number, because the mean of its divisors is an integer number (199137).

2³⁹⁸²⁷³ is an apocalyptic number.

It is an amenable number.

398273 is a deficient number, since it is larger than the sum of its proper divisors (1).

398273 is an equidigital number, since it uses as much as digits as its factorization.

398273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 398273 is about 631.0887417788. The cubic root of 398273 is about 73.5744382917.

The spelling of 398273 in words is "three hundred ninety-eight thousand, two hundred seventy-three".