3989233 has 2 divisors, whose sum is σ = 3989234. Its totient is φ = 3989232.

The previous prime is 3989191. The next prime is 3989243. The reversal of 3989233 is 3329893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3810304 + 178929 = 1952^2 + 423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3989233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3989192 and 3989201.

It is not a weakly prime, because it can be changed into another prime (3989243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994616 + 1994617.

It is an arithmetic number, because the mean of its divisors is an integer number (1994617).

Almost surely, 2^3989233 is an apocalyptic number.

It is an amenable number.

3989233 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989233 is an equidigital number, since it uses as much as digits as its factorization.

3989233 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 3989233 is about 1997.3064361785. The cubic root of 3989233 is about 158.5975476511.

The spelling of 3989233 in words is "three million, nine hundred eighty-nine thousand, two hundred thirty-three".