398207 has 2 divisors, whose sum is σ = 398208. Its totient is φ = 398206.

The previous prime is 398171. The next prime is 398213. The reversal of 398207 is 702893.

It is a strong prime.

It is an emirp because it is prime and its reverse (702893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398207 - 2⁶ = 398143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398207.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398207.

It is not a weakly prime, because it can be changed into another prime (398227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199103 + 199104.

It is an arithmetic number, because the mean of its divisors is an integer number (199104).

2³⁹⁸²⁰⁷ is an apocalyptic number.

398207 is a deficient number, since it is larger than the sum of its proper divisors (1).

398207 is an equidigital number, since it uses as much as digits as its factorization.

398207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 398207 is about 631.0364490265. The cubic root of 398207 is about 73.5703739261.

The spelling of 398207 in words is "three hundred ninety-eight thousand, two hundred seven".