10889993 has 8 divisors (see below), whose sum is σ = 11351880. Its totient is φ = 10433920.

The previous prime is 10889987. The next prime is 10890023. The reversal of 10889993 is 39998801.

10889993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1236544 + 9653449 = 1112^2 + 3107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10889993 - 2⁶ = 10889929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10889933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (1418985).

Almost surely, 2^10889993 is an apocalyptic number.

It is an amenable number.

10889993 is a deficient number, since it is larger than the sum of its proper divisors (461887).

10889993 is a wasteful number, since it uses less digits than its factorization.

10889993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 10889993 is about 3299.9989393938. The cubic root of 10889993 is about 221.6541499581.

The spelling of 10889993 in words is "ten million, eight hundred eighty-nine thousand, nine hundred ninety-three".