12204863 has 4 divisors (see below), whose sum is σ = 13314408. Its totient is φ = 11095320.

The previous prime is 12204851. The next prime is 12204883. The reversal of 12204863 is 36840221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12204863 - 2⁴ = 12204847 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 (12204833) 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, 554756 + ... + 554777.

It is an arithmetic number, because the mean of its divisors is an integer number (3328602).

Almost surely, 2^12204863 is an apocalyptic number.

12204863 is a deficient number, since it is larger than the sum of its proper divisors (1109545).

12204863 is a wasteful number, since it uses less digits than its factorization.

12204863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109544.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12204863 is about 3493.5459063822. The cubic root of 12204863 is about 230.2383351729.

The spelling of 12204863 in words is "twelve million, two hundred four thousand, eight hundred sixty-three".