233792981 has 2 divisors, whose sum is σ = 233792982. Its totient is φ = 233792980.

The previous prime is 233792971. The next prime is 233793071. The reversal of 233792981 is 189297332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164070481 + 69722500 = 12809^2 + 8350^2 .

It is a cyclic number.

It is not a de Polignac number, because 233792981 - 2¹⁴ = 233776597 is a prime.

It is a super-2 number, since 2×233792981² = 109318315929732722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233792941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116896490 + 116896491.

It is an arithmetic number, because the mean of its divisors is an integer number (116896491).

Almost surely, 2^233792981 is an apocalyptic number.

It is an amenable number.

233792981 is a deficient number, since it is larger than the sum of its proper divisors (1).

233792981 is an equidigital number, since it uses as much as digits as its factorization.

233792981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 233792981 is about 15290.2904158162. The cubic root of 233792981 is about 616.0422373987.

The spelling of 233792981 in words is "two hundred thirty-three million, seven hundred ninety-two thousand, nine hundred eighty-one".