1168987 has 2 divisors, whose sum is σ = 1168988. Its totient is φ = 1168986.

The previous prime is 1168969. The next prime is 1168997. The reversal of 1168987 is 7898611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1168987 - 2⁷ = 1168859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1168927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584493 + 584494.

It is an arithmetic number, because the mean of its divisors is an integer number (584494).

2^1168987 is an apocalyptic number.

1168987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168987 is an equidigital number, since it uses as much as digits as its factorization.

1168987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 40.

The square root of 1168987 is about 1081.1970218235. The cubic root of 1168987 is about 105.3424045046.

It can be divided in two parts, 11 and 68987, that multiplied together give a palindrome (758857).

The spelling of 1168987 in words is "one million, one hundred sixty-eight thousand, nine hundred eighty-seven".