23097239 has 4 divisors (see below), whose sum is σ = 25197000. Its totient is φ = 20997480.

The previous prime is 23097211. The next prime is 23097247. The reversal of 23097239 is 93279032.

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 23097239 - 2²⁴ = 6320023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23097199 and 23097208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23097259) 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, 1049864 + ... + 1049885.

It is an arithmetic number, because the mean of its divisors is an integer number (6299250).

Almost surely, 2^23097239 is an apocalyptic number.

23097239 is a deficient number, since it is larger than the sum of its proper divisors (2099761).

23097239 is a wasteful number, since it uses less digits than its factorization.

23097239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099760.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 23097239 is about 4805.9586972840. The cubic root of 23097239 is about 284.7869095567.

The spelling of 23097239 in words is "twenty-three million, ninety-seven thousand, two hundred thirty-nine".