3998233 has 2 divisors, whose sum is σ = 3998234. Its totient is φ = 3998232.

The previous prime is 3998221. The next prime is 3998249. The reversal of 3998233 is 3328993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3697929 + 300304 = 1923^2 + 548^2 .

It is an emirp because it is prime and its reverse (3328993) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3998233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3998192 and 3998201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3998263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999116 + 1999117.

It is an arithmetic number, because the mean of its divisors is an integer number (1999117).

Almost surely, 2^3998233 is an apocalyptic number.

It is an amenable number.

3998233 is a deficient number, since it is larger than the sum of its proper divisors (1).

3998233 is an equidigital number, since it uses as much as digits as its factorization.

3998233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 3998233 is about 1999.5582012035. The cubic root of 3998233 is about 158.7167272736.

The spelling of 3998233 in words is "three million, nine hundred ninety-eight thousand, two hundred thirty-three".