23229709 has 4 divisors (see below), whose sum is σ = 23556960. Its totient is φ = 22902460.

The previous prime is 23229707. The next prime is 23229727. The reversal of 23229709 is 90792232.

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 23229709 - 2¹ = 23229707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23229707) 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, 163519 + ... + 163660.

It is an arithmetic number, because the mean of its divisors is an integer number (5889240).

Almost surely, 2^23229709 is an apocalyptic number.

It is an amenable number.

23229709 is a deficient number, since it is larger than the sum of its proper divisors (327251).

23229709 is an equidigital number, since it uses as much as digits as its factorization.

23229709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327250.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 23229709 is about 4819.7208425385. The cubic root of 23229709 is about 285.3303197863.

The spelling of 23229709 in words is "twenty-three million, two hundred twenty-nine thousand, seven hundred nine".