10989867 has 12 divisors (see below), whose sum is σ = 17045736. Its totient is φ = 6279840.

The previous prime is 10989859. The next prime is 10989887. The reversal of 10989867 is 76898901.

It is a happy number.

It is not a de Polignac number, because 10989867 - 2³ = 10989859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10989817) 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 in 11 ways as a sum of consecutive naturals, for example, 37234 + ... + 37527.

It is an arithmetic number, because the mean of its divisors is an integer number (1420478).

Almost surely, 2^10989867 is an apocalyptic number.

10989867 is a deficient number, since it is larger than the sum of its proper divisors (6055869).

10989867 is an equidigital number, since it uses as much as digits as its factorization.

10989867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74778 (or 74771 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 10989867 is about 3315.0968311650. The cubic root of 10989867 is about 222.3296984097.

The spelling of 10989867 in words is "ten million, nine hundred eighty-nine thousand, eight hundred sixty-seven".