23073809 has 16 divisors (see below), whose sum is σ = 26758080. Its totient is φ = 19676160.

The previous prime is 23073781. The next prime is 23073833. The reversal of 23073809 is 90837032.

It is a cyclic number.

It is not a de Polignac number, because 23073809 - 2¹⁶ = 23008273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23073859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23129 + ... + 24105.

It is an arithmetic number, because the mean of its divisors is an integer number (1672380).

Almost surely, 2^23073809 is an apocalyptic number.

It is an amenable number.

23073809 is a deficient number, since it is larger than the sum of its proper divisors (3684271).

23073809 is a wasteful number, since it uses less digits than its factorization.

23073809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23073809 is about 4803.5204798148. The cubic root of 23073809 is about 284.6905803693.

It can be divided in two parts, 2307 and 3809, that added together give a palindrome (6116).

The spelling of 23073809 in words is "twenty-three million, seventy-three thousand, eight hundred nine".