10816009 has 4 divisors (see below), whose sum is σ = 10838016. Its totient is φ = 10794004.

The previous prime is 10815991. The next prime is 10816027. The reversal of 10816009 is 90061801.

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 an interprime number because it is at equal distance from previous prime (10815991) and next prime (10816027).

It is a cyclic number.

It is not a de Polignac number, because 10816009 - 2¹³ = 10807817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10816079) 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, 10249 + ... + 11254.

It is an arithmetic number, because the mean of its divisors is an integer number (2709504).

Almost surely, 2^10816009 is an apocalyptic number.

It is an amenable number.

10816009 is a deficient number, since it is larger than the sum of its proper divisors (22007).

10816009 is an equidigital number, since it uses as much as digits as its factorization.

10816009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22006.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10816009 is about 3288.7701348680. The cubic root of 10816009 is about 221.1510538871.

It can be divided in two parts, 1081600 and 9, that multiplied together give a square (9734400 = 3120²).

The spelling of 10816009 in words is "ten million, eight hundred sixteen thousand, nine".