13711487 has 4 divisors (see below), whose sum is σ = 13749216. Its totient is φ = 13673760.

The previous prime is 13711447. The next prime is 13711499. The reversal of 13711487 is 78411731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78411731 = 173 ⋅453247.

It is a cyclic number.

It is not a de Polignac number, because 13711487 - 2¹² = 13707391 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 (13711417) 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, 18314 + ... + 19047.

It is an arithmetic number, because the mean of its divisors is an integer number (3437304).

Almost surely, 2^13711487 is an apocalyptic number.

13711487 is a deficient number, since it is larger than the sum of its proper divisors (37729).

13711487 is an equidigital number, since it uses as much as digits as its factorization.

13711487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37728.

The product of its digits is 4704, while the sum is 32.

The square root of 13711487 is about 3702.9025101939. The cubic root of 13711487 is about 239.3471085992.

The spelling of 13711487 in words is "thirteen million, seven hundred eleven thousand, four hundred eighty-seven".