11170987 has 2 divisors, whose sum is σ = 11170988. Its totient is φ = 11170986.

The previous prime is 11170981. The next prime is 11170997. The reversal of 11170987 is 78907111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11170987 - 2³ = 11170979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11170981) 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, 5585493 + 5585494.

It is an arithmetic number, because the mean of its divisors is an integer number (5585494).

Almost surely, 2^11170987 is an apocalyptic number.

11170987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11170987 is an equidigital number, since it uses as much as digits as its factorization.

11170987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 11170987 is about 3342.3026493721. The cubic root of 11170987 is about 223.5444277716.

The spelling of 11170987 in words is "eleven million, one hundred seventy thousand, nine hundred eighty-seven".