13287047 has 8 divisors (see below), whose sum is σ = 14335056. Its totient is φ = 12268672.

The previous prime is 13287007. The next prime is 13287049. The reversal of 13287047 is 74078231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13287047 - 2⁶ = 13286983 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 (13287049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6473 + ... + 8274.

It is an arithmetic number, because the mean of its divisors is an integer number (1791882).

Almost surely, 2^13287047 is an apocalyptic number.

13287047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13287047 is a deficient number, since it is larger than the sum of its proper divisors (1048009).

13287047 is a wasteful number, since it uses less digits than its factorization.

13287047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 13287047 is about 3645.1401893480. The cubic root of 13287047 is about 236.8515095880.

The spelling of 13287047 in words is "thirteen million, two hundred eighty-seven thousand, forty-seven".