10978987 has 2 divisors, whose sum is σ = 10978988. Its totient is φ = 10978986.

The previous prime is 10978969. The next prime is 10978999. The reversal of 10978987 is 78987901.

10978987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78987901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10978987 - 2⁷ = 10978859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10978987.

It is not a weakly prime, because it can be changed into another prime (10978927) 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, 5489493 + 5489494.

It is an arithmetic number, because the mean of its divisors is an integer number (5489494).

Almost surely, 2^10978987 is an apocalyptic number.

10978987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10978987 is an equidigital number, since it uses as much as digits as its factorization.

10978987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 10978987 is about 3313.4554471126. The cubic root of 10978987 is about 222.2563051705.

The spelling of 10978987 in words is "ten million, nine hundred seventy-eight thousand, nine hundred eighty-seven".