11343809 has 4 divisors (see below), whose sum is σ = 11411904. Its totient is φ = 11275716.

The previous prime is 11343797. The next prime is 11343821. The reversal of 11343809 is 90834311.

11343809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90834311 = 41 ⋅2215471.

It is an interprime number because it is at equal distance from previous prime (11343797) and next prime (11343821).

It is a cyclic number.

It is not a de Polignac number, because 11343809 - 2¹⁶ = 11278273 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 (11343869) 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, 33797 + ... + 34130.

It is an arithmetic number, because the mean of its divisors is an integer number (2852976).

Almost surely, 2^11343809 is an apocalyptic number.

It is an amenable number.

11343809 is a deficient number, since it is larger than the sum of its proper divisors (68095).

11343809 is an equidigital number, since it uses as much as digits as its factorization.

11343809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68094.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 11343809 is about 3368.0571550970. The cubic root of 11343809 is about 224.6913232230.

The spelling of 11343809 in words is "eleven million, three hundred forty-three thousand, eight hundred nine".