10989859 has 2 divisors, whose sum is σ = 10989860. Its totient is φ = 10989858.

The previous prime is 10989857. The next prime is 10989887. The reversal of 10989859 is 95898901.

It is a happy number.

10989859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10989859 - 2¹ = 10989857 is a prime.

Together with 10989857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10989857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5494929 + 5494930.

It is an arithmetic number, because the mean of its divisors is an integer number (5494930).

Almost surely, 2^10989859 is an apocalyptic number.

10989859 is a deficient number, since it is larger than the sum of its proper divisors (1).

10989859 is an equidigital number, since it uses as much as digits as its factorization.

10989859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 10989859 is about 3315.0956245635. The cubic root of 10989859 is about 222.3296444619.

The spelling of 10989859 in words is "ten million, nine hundred eighty-nine thousand, eight hundred fifty-nine".