12272479 has 4 divisors (see below), whose sum is σ = 12284584. Its totient is φ = 12260376.

The previous prime is 12272441. The next prime is 12272483. The reversal of 12272479 is 97427221.

It is a happy number.

12272479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97427221 = 17 ⋅5731013.

It is a cyclic number.

It is not a de Polignac number, because 12272479 - 2¹⁷ = 12141407 is a prime.

It is a super-2 number, since 2×12272479² = 301227481610882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272779) 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, 4377 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (3071146).

Almost surely, 2^12272479 is an apocalyptic number.

12272479 is a deficient number, since it is larger than the sum of its proper divisors (12105).

12272479 is a wasteful number, since it uses less digits than its factorization.

12272479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104.

The product of its digits is 14112, while the sum is 34.

The square root of 12272479 is about 3503.2098138707. The cubic root of 12272479 is about 230.6627325204.

The spelling of 12272479 in words is "twelve million, two hundred seventy-two thousand, four hundred seventy-nine".