23496209 has 4 divisors (see below), whose sum is σ = 25632240. Its totient is φ = 21360180.

The previous prime is 23496173. The next prime is 23496211. The reversal of 23496209 is 90269432.

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 a de Polignac number, because none of the positive numbers 2^k-23496209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23496229) 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, 1067999 + ... + 1068020.

It is an arithmetic number, because the mean of its divisors is an integer number (6408060).

Almost surely, 2^23496209 is an apocalyptic number.

It is an amenable number.

23496209 is a deficient number, since it is larger than the sum of its proper divisors (2136031).

23496209 is a wasteful number, since it uses less digits than its factorization.

23496209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136030.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 23496209 is about 4847.2888298512. The cubic root of 23496209 is about 286.4173126102.

It can be divided in two parts, 2349 and 6209, that added together give a palindrome (8558).

The spelling of 23496209 in words is "twenty-three million, four hundred ninety-six thousand, two hundred nine".