23009039 has 4 divisors (see below), whose sum is σ = 24009456. Its totient is φ = 22008624.

The previous prime is 23009033. The next prime is 23009047. The reversal of 23009039 is 93090032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23009039 - 2⁴ = 23009023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23008999 and 23009017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23009033) 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, 500174 + ... + 500219.

It is an arithmetic number, because the mean of its divisors is an integer number (6002364).

Almost surely, 2^23009039 is an apocalyptic number.

23009039 is a deficient number, since it is larger than the sum of its proper divisors (1000417).

23009039 is a wasteful number, since it uses less digits than its factorization.

23009039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000416.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 23009039 is about 4796.7738116363. The cubic root of 23009039 is about 284.4239477633.

The spelling of 23009039 in words is "twenty-three million, nine thousand, thirty-nine".