233204661 has 12 divisors (see below), whose sum is σ = 347717760. Its totient is φ = 150454440.

The previous prime is 233204641. The next prime is 233204677. The reversal of 233204661 is 166402332.

It is not a de Polignac number, because 233204661 - 2⁷ = 233204533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233204641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417651 + ... + 418208.

It is an arithmetic number, because the mean of its divisors is an integer number (28976480).

Almost surely, 2^233204661 is an apocalyptic number.

It is an amenable number.

233204661 is a deficient number, since it is larger than the sum of its proper divisors (114513099).

233204661 is a wasteful number, since it uses less digits than its factorization.

233204661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835896 (or 835893 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 233204661 is about 15271.0399449415. The cubic root of 233204661 is about 615.5250641838.

Adding to 233204661 its reverse (166402332), we get a palindrome (399606993).

The spelling of 233204661 in words is "two hundred thirty-three million, two hundred four thousand, six hundred sixty-one".