398468233 has 2 divisors, whose sum is σ = 398468234. Its totient is φ = 398468232.

The previous prime is 398468227. The next prime is 398468249. The reversal of 398468233 is 332864893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202692169 + 195776064 = 14237^2 + 13992^2 .

It is a cyclic number.

It is not a de Polignac number, because 398468233 - 2⁵ = 398468201 is a prime.

It is not a weakly prime, because it can be changed into another prime (398469233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199234116 + 199234117.

It is an arithmetic number, because the mean of its divisors is an integer number (199234117).

Almost surely, 2^398468233 is an apocalyptic number.

It is an amenable number.

398468233 is a deficient number, since it is larger than the sum of its proper divisors (1).

398468233 is an equidigital number, since it uses as much as digits as its factorization.

398468233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 46.

The square root of 398468233 is about 19961.6690935402. The cubic root of 398468233 is about 735.8645836491.

The spelling of 398468233 in words is "three hundred ninety-eight million, four hundred sixty-eight thousand, two hundred thirty-three".