276790247 has 2 divisors, whose sum is σ = 276790248. Its totient is φ = 276790246.

The previous prime is 276790177. The next prime is 276790249. The reversal of 276790247 is 742097672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276790247 - 2⁸ = 276789991 is a prime.

It is a super-2 number, since 2×276790247² = 153225681668642018, which contains 22 as substring.

Together with 276790249, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 276790198 and 276790207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276790249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138395123 + 138395124.

It is an arithmetic number, because the mean of its divisors is an integer number (138395124).

Almost surely, 2^276790247 is an apocalyptic number.

276790247 is a deficient number, since it is larger than the sum of its proper divisors (1).

276790247 is an equidigital number, since it uses as much as digits as its factorization.

276790247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 276790247 is about 16637.0143655645. The cubic root of 276790247 is about 651.7038116405.

The spelling of 276790247 in words is "two hundred seventy-six million, seven hundred ninety thousand, two hundred forty-seven".