23065409 has 4 divisors (see below), whose sum is σ = 23126016. Its totient is φ = 23004804.

The previous prime is 23065397. The next prime is 23065421. The reversal of 23065409 is 90456032.

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 (23065397) and next prime (23065421).

It is a cyclic number.

It is not a de Polignac number, because 23065409 - 2²⁰ = 22016833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23065439) 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, 29729 + ... + 30494.

It is an arithmetic number, because the mean of its divisors is an integer number (5781504).

Almost surely, 2^23065409 is an apocalyptic number.

It is an amenable number.

23065409 is a deficient number, since it is larger than the sum of its proper divisors (60607).

23065409 is an equidigital number, since it uses as much as digits as its factorization.

23065409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60606.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23065409 is about 4802.6460415067. The cubic root of 23065409 is about 284.6560290572.

The spelling of 23065409 in words is "twenty-three million, sixty-five thousand, four hundred nine".