4233661 has 2 divisors, whose sum is σ = 4233662. Its totient is φ = 4233660.

The previous prime is 4233653. The next prime is 4233667. The reversal of 4233661 is 1663324.

4233661 is nontrivially palindromic in base 12.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 2013561 = 1490^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 4233661 - 2³ = 4233653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4233667) 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, 2116830 + 2116831.

It is an arithmetic number, because the mean of its divisors is an integer number (2116831).

Almost surely, 2^4233661 is an apocalyptic number.

It is an amenable number.

4233661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4233661 is an equidigital number, since it uses as much as digits as its factorization.

4233661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 4233661 is about 2057.5862071855. The cubic root of 4233661 is about 161.7727469489.

Adding to 4233661 its reverse (1663324), we get a palindrome (5896985).

The spelling of 4233661 in words is "four million, two hundred thirty-three thousand, six hundred sixty-one".