1113667787 has 2 divisors, whose sum is σ = 1113667788. Its totient is φ = 1113667786.

The previous prime is 1113667783. The next prime is 1113667817. The reversal of 1113667787 is 7877663111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113667787 - 2² = 1113667783 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113667783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556833893 + 556833894.

It is an arithmetic number, because the mean of its divisors is an integer number (556833894).

Almost surely, 2^1113667787 is an apocalyptic number.

1113667787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113667787 is an equidigital number, since it uses as much as digits as its factorization.

1113667787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 47.

The square root of 1113667787 is about 33371.6614360148. The cubic root of 1113667787 is about 1036.5379787506.

The spelling of 1113667787 in words is "one billion, one hundred thirteen million, six hundred sixty-seven thousand, seven hundred eighty-seven".