276840233 has 2 divisors, whose sum is σ = 276840234. Its totient is φ = 276840232.

The previous prime is 276840209. The next prime is 276840247. The reversal of 276840233 is 332048672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238300969 + 38539264 = 15437^2 + 6208^2 .

It is a cyclic number.

It is not a de Polignac number, because 276840233 - 2²⁸ = 8404777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276840193 and 276840202.

It is not a weakly prime, because it can be changed into another prime (276840283) 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, 138420116 + 138420117.

It is an arithmetic number, because the mean of its divisors is an integer number (138420117).

Almost surely, 2^276840233 is an apocalyptic number.

It is an amenable number.

276840233 is a deficient number, since it is larger than the sum of its proper divisors (1).

276840233 is an equidigital number, since it uses as much as digits as its factorization.

276840233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 276840233 is about 16638.5165504621. The cubic root of 276840233 is about 651.7430400289.

The spelling of 276840233 in words is "two hundred seventy-six million, eight hundred forty thousand, two hundred thirty-three".