13671279 has 24 divisors (see below), whose sum is σ = 21465600. Its totient is φ = 8352720.

The previous prime is 13671257. The next prime is 13671289. The reversal of 13671279 is 97217631.

It is a happy number.

13671279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13671279 - 2¹⁵ = 13638511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4012 + ... + 6590.

It is an arithmetic number, because the mean of its divisors is an integer number (894400).

Almost surely, 2^13671279 is an apocalyptic number.

13671279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13671279 is a deficient number, since it is larger than the sum of its proper divisors (7794321).

13671279 is a wasteful number, since it uses less digits than its factorization.

13671279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2632 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 13671279 is about 3697.4692696492. The cubic root of 13671279 is about 239.1129231843.

It can be divided in two parts, 13671 and 279, that multiplied together give a square (3814209 = 1953²).

The spelling of 13671279 in words is "thirteen million, six hundred seventy-one thousand, two hundred seventy-nine".