12207823 has 4 divisors (see below), whose sum is σ = 12850360. Its totient is φ = 11565288.

The previous prime is 12207821. The next prime is 12207851. The reversal of 12207823 is 32870221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32870221 = 73 ⋅450277.

It is a cyclic number.

It is not a de Polignac number, because 12207823 - 2¹ = 12207821 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 (12207821) 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, 321240 + ... + 321277.

It is an arithmetic number, because the mean of its divisors is an integer number (3212590).

Almost surely, 2^12207823 is an apocalyptic number.

12207823 is a deficient number, since it is larger than the sum of its proper divisors (642537).

12207823 is an equidigital number, since it uses as much as digits as its factorization.

12207823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642536.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12207823 is about 3493.9695190428. The cubic root of 12207823 is about 230.2569466172.

The spelling of 12207823 in words is "twelve million, two hundred seven thousand, eight hundred twenty-three".