12272769 has 8 divisors (see below), whose sum is σ = 18181920. Its totient is φ = 8181828.

The previous prime is 12272749. The next prime is 12272779. The reversal of 12272769 is 96727221.

It is not a de Polignac number, because 12272769 - 2⁵ = 12272737 is a prime.

It is a super-2 number, since 2×12272769² = 301241717854722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12272719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227247 + ... + 227300.

It is an arithmetic number, because the mean of its divisors is an integer number (2272740).

Almost surely, 2^12272769 is an apocalyptic number.

It is an amenable number.

12272769 is a deficient number, since it is larger than the sum of its proper divisors (5909151).

12272769 is an equidigital number, since it uses as much as digits as its factorization.

12272769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454556 (or 454550 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 12272769 is about 3503.2512042387. The cubic root of 12272769 is about 230.6645493678.

It can be divided in two parts, 12272 and 769, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12272769 in words is "twelve million, two hundred seventy-two thousand, seven hundred sixty-nine".