276673213 has 2 divisors, whose sum is σ = 276673214. Its totient is φ = 276673212.

The previous prime is 276673157. The next prime is 276673219. The reversal of 276673213 is 312376672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199883044 + 76790169 = 14138^2 + 8763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276673213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276673219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138336606 + 138336607.

It is an arithmetic number, because the mean of its divisors is an integer number (138336607).

Almost surely, 2^276673213 is an apocalyptic number.

It is an amenable number.

276673213 is a deficient number, since it is larger than the sum of its proper divisors (1).

276673213 is an equidigital number, since it uses as much as digits as its factorization.

276673213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 37.

The square root of 276673213 is about 16633.4967159644. The cubic root of 276673213 is about 651.6119463417.

The spelling of 276673213 in words is "two hundred seventy-six million, six hundred seventy-three thousand, two hundred thirteen".