13672447 has 4 divisors (see below), whose sum is σ = 13826160. Its totient is φ = 13518736.

The previous prime is 13672433. The next prime is 13672453. The reversal of 13672447 is 74427631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74427631 = 7001 ⋅10631.

It is a cyclic number.

It is not a de Polignac number, because 13672447 - 2⁷ = 13672319 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 (13672487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76723 + ... + 76900.

It is an arithmetic number, because the mean of its divisors is an integer number (3456540).

Almost surely, 2^13672447 is an apocalyptic number.

13672447 is a deficient number, since it is larger than the sum of its proper divisors (153713).

13672447 is an equidigital number, since it uses as much as digits as its factorization.

13672447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153712.

The product of its digits is 28224, while the sum is 34.

The square root of 13672447 is about 3697.6272121456. The cubic root of 13672447 is about 239.1197324946.

The spelling of 13672447 in words is "thirteen million, six hundred seventy-two thousand, four hundred forty-seven".