398445211 has 2 divisors, whose sum is σ = 398445212. Its totient is φ = 398445210.

The previous prime is 398445199. The next prime is 398445247. The reversal of 398445211 is 112544893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398445211 - 2⁷ = 398445083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (398442211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199222605 + 199222606.

It is an arithmetic number, because the mean of its divisors is an integer number (199222606).

Almost surely, 2^398445211 is an apocalyptic number.

398445211 is a deficient number, since it is larger than the sum of its proper divisors (1).

398445211 is an equidigital number, since it uses as much as digits as its factorization.

398445211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 398445211 is about 19961.0924300250. The cubic root of 398445211 is about 735.8504115442.

The spelling of 398445211 in words is "three hundred ninety-eight million, four hundred forty-five thousand, two hundred eleven".