276197947 has 2 divisors, whose sum is σ = 276197948. Its totient is φ = 276197946.

The previous prime is 276197849. The next prime is 276197951. The reversal of 276197947 is 749791672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276197947 - 2⁷ = 276197819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276197894 and 276197903.

It is not a weakly prime, because it can be changed into another prime (276197347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138098973 + 138098974.

It is an arithmetic number, because the mean of its divisors is an integer number (138098974).

Almost surely, 2^276197947 is an apocalyptic number.

276197947 is a deficient number, since it is larger than the sum of its proper divisors (1).

276197947 is an equidigital number, since it uses as much as digits as its factorization.

276197947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 52.

The square root of 276197947 is about 16619.2041626547. The cubic root of 276197947 is about 651.2386220433.

The spelling of 276197947 in words is "two hundred seventy-six million, one hundred ninety-seven thousand, nine hundred forty-seven".