398303 has 2 divisors, whose sum is σ = 398304. Its totient is φ = 398302.

The previous prime is 398287. The next prime is 398311. The reversal of 398303 is 303893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398303 - 2⁴ = 398287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199151 + 199152.

It is an arithmetic number, because the mean of its divisors is an integer number (199152).

2³⁹⁸³⁰³ is an apocalyptic number.

398303 is a deficient number, since it is larger than the sum of its proper divisors (1).

398303 is an equidigital number, since it uses as much as digits as its factorization.

398303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 398303 is about 631.1125097794. The cubic root of 398303 is about 73.5762855821.

The spelling of 398303 in words is "three hundred ninety-eight thousand, three hundred three".