233009969 has 2 divisors, whose sum is σ = 233009970. Its totient is φ = 233009968.

The previous prime is 233009963. The next prime is 233009971. The reversal of 233009969 is 969900332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193571569 + 39438400 = 13913^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 233009969 - 2⁸ = 233009713 is a prime.

It is a super-2 number, since 2×233009969² = 108587291306761922, which contains 22 as substring.

Together with 233009971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233009963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116504984 + 116504985.

It is an arithmetic number, because the mean of its divisors is an integer number (116504985).

Almost surely, 2^233009969 is an apocalyptic number.

It is an amenable number.

233009969 is a deficient number, since it is larger than the sum of its proper divisors (1).

233009969 is an equidigital number, since it uses as much as digits as its factorization.

233009969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 233009969 is about 15264.6640644333. The cubic root of 233009969 is about 615.3537251694.

The spelling of 233009969 in words is "two hundred thirty-three million, nine thousand, nine hundred sixty-nine".