23460209 has 2 divisors, whose sum is σ = 23460210. Its totient is φ = 23460208.

The previous prime is 23460181. The next prime is 23460247. The reversal of 23460209 is 90206432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17472400 + 5987809 = 4180^2 + 2447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23460209 is a prime.

It is not a weakly prime, because it can be changed into another prime (23450209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11730104 + 11730105.

It is an arithmetic number, because the mean of its divisors is an integer number (11730105).

Almost surely, 2^23460209 is an apocalyptic number.

It is an amenable number.

23460209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23460209 is an equidigital number, since it uses as much as digits as its factorization.

23460209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23460209 is about 4843.5739903505. The cubic root of 23460209 is about 286.2709585920.

The spelling of 23460209 in words is "twenty-three million, four hundred sixty thousand, two hundred nine".