10989858 has 32 divisors (see below), whose sum is σ = 24316992. Its totient is φ = 3283200.

The previous prime is 10989857. The next prime is 10989859. The reversal of 10989858 is 85898901.

It is an interprime number because it is at equal distance from previous prime (10989857) and next prime (10989859).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10989857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3678 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (759906).

Almost surely, 2^10989858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10989858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12158496).

10989858 is an abundant number, since it is smaller than the sum of its proper divisors (13327134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10989858 is a wasteful number, since it uses less digits than its factorization.

10989858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 10989858 is about 3315.0954737383. The cubic root of 10989858 is about 222.3296377184.

The spelling of 10989858 in words is "ten million, nine hundred eighty-nine thousand, eight hundred fifty-eight".