398273333 has 2 divisors, whose sum is σ = 398273334. Its totient is φ = 398273332.

The previous prime is 398273329. The next prime is 398273341. The reversal of 398273333 is 333372893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230493124 + 167780209 = 15182^2 + 12953^2 .

It is a cyclic number.

It is not a de Polignac number, because 398273333 - 2² = 398273329 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398273363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199136666 + 199136667.

It is an arithmetic number, because the mean of its divisors is an integer number (199136667).

Almost surely, 2^398273333 is an apocalyptic number.

It is an amenable number.

398273333 is a deficient number, since it is larger than the sum of its proper divisors (1).

398273333 is an equidigital number, since it uses as much as digits as its factorization.

398273333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 41.

The square root of 398273333 is about 19956.7866401382. The cubic root of 398273333 is about 735.7445879713.

The spelling of 398273333 in words is "three hundred ninety-eight million, two hundred seventy-three thousand, three hundred thirty-three".