23038709 has 4 divisors (see below), whose sum is σ = 24040416. Its totient is φ = 22037004.

The previous prime is 23038703. The next prime is 23038711. The reversal of 23038709 is 90783032.

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 a cyclic number.

It is not a de Polignac number, because 23038709 - 2⁸ = 23038453 is a prime.

It is a super-2 number, since 2×23038709² = 1061564224773362, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23038703) 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, 500819 + ... + 500864.

It is an arithmetic number, because the mean of its divisors is an integer number (6010104).

Almost surely, 2^23038709 is an apocalyptic number.

It is an amenable number.

23038709 is a deficient number, since it is larger than the sum of its proper divisors (1001707).

23038709 is a wasteful number, since it uses less digits than its factorization.

23038709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001706.

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

The square root of 23038709 is about 4799.8655189495. The cubic root of 23038709 is about 284.5461495039.

The spelling of 23038709 in words is "twenty-three million, thirty-eight thousand, seven hundred nine".