10889309 has 4 divisors (see below), whose sum is σ = 11051904. Its totient is φ = 10726716.

The previous prime is 10889303. The next prime is 10889321. The reversal of 10889309 is 90398801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10889309 - 2¹⁶ = 10823773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889303) 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 3 ways as a sum of consecutive naturals, for example, 81197 + ... + 81330.

It is an arithmetic number, because the mean of its divisors is an integer number (2762976).

Almost surely, 2^10889309 is an apocalyptic number.

It is an amenable number.

10889309 is a deficient number, since it is larger than the sum of its proper divisors (162595).

10889309 is an equidigital number, since it uses as much as digits as its factorization.

10889309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162594.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 10889309 is about 3299.8953013694. The cubic root of 10889309 is about 221.6495091650.

The spelling of 10889309 in words is "ten million, eight hundred eighty-nine thousand, three hundred nine".