23379209 has 4 divisors (see below), whose sum is σ = 26719104. Its totient is φ = 20039316.

The previous prime is 23379203. The next prime is 23379211. The reversal of 23379209 is 90297332.

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 23379209 - 2²⁴ = 6601993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23379203) 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, 1669937 + ... + 1669950.

It is an arithmetic number, because the mean of its divisors is an integer number (6679776).

Almost surely, 2^23379209 is an apocalyptic number.

It is an amenable number.

23379209 is a deficient number, since it is larger than the sum of its proper divisors (3339895).

23379209 is an equidigital number, since it uses as much as digits as its factorization.

23379209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339894.

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

The square root of 23379209 is about 4835.2051662778. The cubic root of 23379209 is about 285.9411137668.

The spelling of 23379209 in words is "twenty-three million, three hundred seventy-nine thousand, two hundred nine".