1179345847 has 2 divisors, whose sum is σ = 1179345848. Its totient is φ = 1179345846.

The previous prime is 1179345841. The next prime is 1179345851. The reversal of 1179345847 is 7485439711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1179345847 - 2¹⁹ = 1178821559 is a prime.

It is a super-2 number, since 2×1179345847² = 2781713253672294818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1179345847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1179345841) 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, 589672923 + 589672924.

It is an arithmetic number, because the mean of its divisors is an integer number (589672924).

Almost surely, 2^1179345847 is an apocalyptic number.

1179345847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179345847 is an equidigital number, since it uses as much as digits as its factorization.

1179345847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 1179345847 is about 34341.6051896239. The cubic root of 1179345847 is about 1056.5264986160.

The spelling of 1179345847 in words is "one billion, one hundred seventy-nine million, three hundred forty-five thousand, eight hundred forty-seven".