10509089 has 4 divisors (see below), whose sum is σ = 10516356. Its totient is φ = 10501824.

The previous prime is 10509029. The next prime is 10509097. The reversal of 10509089 is 98090501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98090501 = 61 ⋅1608041.

It can be written as a sum of positive squares in 2 ways, for example, as 6477025 + 4032064 = 2545^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 10509089 - 2¹⁶ = 10443553 is a prime.

It is a super-2 number, since 2×10509089² = 220881903219842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10509029) 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, 644 + ... + 4629.

It is an arithmetic number, because the mean of its divisors is an integer number (2629089).

Almost surely, 2^10509089 is an apocalyptic number.

It is an amenable number.

10509089 is a deficient number, since it is larger than the sum of its proper divisors (7267).

10509089 is an equidigital number, since it uses as much as digits as its factorization.

10509089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266.

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

The square root of 10509089 is about 3241.7725089833. The cubic root of 10509089 is about 219.0391220254.

The spelling of 10509089 in words is "ten million, five hundred nine thousand, eighty-nine".