1172988827 has 2 divisors, whose sum is σ = 1172988828. Its totient is φ = 1172988826.

The previous prime is 1172988811. The next prime is 1172988833. The reversal of 1172988827 is 7288892711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1172988827 - 2⁴ = 1172988811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1172988847) 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, 586494413 + 586494414.

It is an arithmetic number, because the mean of its divisors is an integer number (586494414).

Almost surely, 2^1172988827 is an apocalyptic number.

1172988827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172988827 is an equidigital number, since it uses as much as digits as its factorization.

1172988827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 53.

The square root of 1172988827 is about 34248.9244648646. The cubic root of 1172988827 is about 1054.6247482842.

The spelling of 1172988827 in words is "one billion, one hundred seventy-two million, nine hundred eighty-eight thousand, eight hundred twenty-seven".