13286247 has 16 divisors (see below), whose sum is σ = 19272288. Its totient is φ = 8092800.

The previous prime is 13286239. The next prime is 13286257. The reversal of 13286247 is 74268231.

It is not a de Polignac number, because 13286247 - 2³ = 13286239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13286257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (1204518).

Almost surely, 2^13286247 is an apocalyptic number.

13286247 is a deficient number, since it is larger than the sum of its proper divisors (5986041).

13286247 is a wasteful number, since it uses less digits than its factorization.

13286247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490.

The product of its digits is 16128, while the sum is 33.

The square root of 13286247 is about 3645.0304525477. The cubic root of 13286247 is about 236.8467559607.

The spelling of 13286247 in words is "thirteen million, two hundred eighty-six thousand, two hundred forty-seven".