13279047 has 4 divisors (see below), whose sum is σ = 17705400. Its totient is φ = 8852696.

The previous prime is 13279033. The next prime is 13279061. The reversal of 13279047 is 74097231.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13279033) and next prime (13279061).

It is a cyclic number.

It is not a de Polignac number, because 13279047 - 2⁶ = 13278983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13278999 and 13279017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13274047) 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, 2213172 + ... + 2213177.

It is an arithmetic number, because the mean of its divisors is an integer number (4426350).

Almost surely, 2^13279047 is an apocalyptic number.

13279047 is a deficient number, since it is larger than the sum of its proper divisors (4426353).

13279047 is an equidigital number, since it uses as much as digits as its factorization.

13279047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426352.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 13279047 is about 3644.0426726371. The cubic root of 13279047 is about 236.8039647251.

The spelling of 13279047 in words is "thirteen million, two hundred seventy-nine thousand, forty-seven".