10905089 has 4 divisors (see below), whose sum is σ = 11743956. Its totient is φ = 10066224.

The previous prime is 10905067. The next prime is 10905091. The reversal of 10905089 is 98050901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 10080625 = 908^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10905089 - 2²⁰ = 9856513 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 (10905049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419414 + ... + 419439.

It is an arithmetic number, because the mean of its divisors is an integer number (2935989).

Almost surely, 2^10905089 is an apocalyptic number.

It is an amenable number.

10905089 is a deficient number, since it is larger than the sum of its proper divisors (838867).

10905089 is an equidigital number, since it uses as much as digits as its factorization.

10905089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838866.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 10905089 is about 3302.2854207352. The cubic root of 10905089 is about 221.7565236416.

The spelling of 10905089 in words is "ten million, nine hundred five thousand, eighty-nine".