1167020779 has 2 divisors, whose sum is σ = 1167020780. Its totient is φ = 1167020778.

The previous prime is 1167020749. The next prime is 1167020801. The reversal of 1167020779 is 9770207611.

It is a strong prime.

It is an emirp because it is prime and its reverse (9770207611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1167020779 - 2⁵ = 1167020747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1167020749) 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, 583510389 + 583510390.

It is an arithmetic number, because the mean of its divisors is an integer number (583510390).

Almost surely, 2^1167020779 is an apocalyptic number.

1167020779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167020779 is an equidigital number, since it uses as much as digits as its factorization.

1167020779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 40.

The square root of 1167020779 is about 34161.6858336939. The cubic root of 1167020779 is about 1052.8330983987.

The spelling of 1167020779 in words is "one billion, one hundred sixty-seven million, twenty thousand, seven hundred seventy-nine".