12776223 has 16 divisors (see below), whose sum is σ = 17372160. Its totient is φ = 8350944.

The previous prime is 12776213. The next prime is 12776243. The reversal of 12776223 is 32267721.

It is not a de Polignac number, because 12776223 - 2⁴ = 12776207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53338 + ... + 53576.

It is an arithmetic number, because the mean of its divisors is an integer number (1085760).

Almost surely, 2^12776223 is an apocalyptic number.

12776223 is a deficient number, since it is larger than the sum of its proper divisors (4595937).

12776223 is a wasteful number, since it uses less digits than its factorization.

12776223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its digits is 7056, while the sum is 30.

The square root of 12776223 is about 3574.3842826423. The cubic root of 12776223 is about 233.7764868420.

The spelling of 12776223 in words is "twelve million, seven hundred seventy-six thousand, two hundred twenty-three".