13224479 has 4 divisors (see below), whose sum is σ = 13352976. Its totient is φ = 13095984.

The previous prime is 13224469. The next prime is 13224499. The reversal of 13224479 is 97442231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97442231 = 233 ⋅418207.

It is a cyclic number.

It is not a de Polignac number, because 13224479 - 2⁸ = 13224223 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 (13224469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64094 + ... + 64299.

It is an arithmetic number, because the mean of its divisors is an integer number (3338244).

Almost surely, 2^13224479 is an apocalyptic number.

13224479 is a deficient number, since it is larger than the sum of its proper divisors (128497).

13224479 is a wasteful number, since it uses less digits than its factorization.

13224479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128496.

The product of its digits is 12096, while the sum is 32.

The square root of 13224479 is about 3636.5476760246. The cubic root of 13224479 is about 236.4791507678.

The spelling of 13224479 in words is "thirteen million, two hundred twenty-four thousand, four hundred seventy-nine".