10989787 has 2 divisors, whose sum is σ = 10989788. Its totient is φ = 10989786.

The previous prime is 10989773. The next prime is 10989817. The reversal of 10989787 is 78798901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10989787 - 2⁷ = 10989659 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10989787.

It is not a weakly prime, because it can be changed into another prime (10989287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5494893 + 5494894.

It is an arithmetic number, because the mean of its divisors is an integer number (5494894).

Almost surely, 2^10989787 is an apocalyptic number.

10989787 is a deficient number, since it is larger than the sum of its proper divisors (1).

10989787 is an equidigital number, since it uses as much as digits as its factorization.

10989787 is an evil number, because the sum of its binary digits is even.

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

The square root of 10989787 is about 3315.0847651304. The cubic root of 10989787 is about 222.3291589303.

The spelling of 10989787 in words is "ten million, nine hundred eighty-nine thousand, seven hundred eighty-seven".