13278467 has 4 divisors (see below), whose sum is σ = 13324080. Its totient is φ = 13232856.

The previous prime is 13278439. The next prime is 13278493. The reversal of 13278467 is 76487231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76487231 = 3313 ⋅23087.

It is a cyclic number.

It is not a de Polignac number, because 13278467 - 2¹⁴ = 13262083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13278467.

It is not an unprimeable number, because it can be changed into a prime (13278497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22367 + ... + 22952.

It is an arithmetic number, because the mean of its divisors is an integer number (3331020).

Almost surely, 2^13278467 is an apocalyptic number.

13278467 is a deficient number, since it is larger than the sum of its proper divisors (45613).

13278467 is an equidigital number, since it uses as much as digits as its factorization.

13278467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45612.

The product of its digits is 56448, while the sum is 38.

The square root of 13278467 is about 3643.9630898240. The cubic root of 13278467 is about 236.8005169802.

The spelling of 13278467 in words is "thirteen million, two hundred seventy-eight thousand, four hundred sixty-seven".