276220829 has 2 divisors, whose sum is σ = 276220830. Its totient is φ = 276220828.

The previous prime is 276220817. The next prime is 276220837. The reversal of 276220829 is 928022672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170172025 + 106048804 = 13045^2 + 10298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276220829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276220792 and 276220801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276220849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138110414 + 138110415.

It is an arithmetic number, because the mean of its divisors is an integer number (138110415).

Almost surely, 2^276220829 is an apocalyptic number.

It is an amenable number.

276220829 is a deficient number, since it is larger than the sum of its proper divisors (1).

276220829 is an equidigital number, since it uses as much as digits as its factorization.

276220829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 276220829 is about 16619.8925688465. The cubic root of 276220829 is about 651.2566058007.

The spelling of 276220829 in words is "two hundred seventy-six million, two hundred twenty thousand, eight hundred twenty-nine".