13976287 has 8 divisors (see below), whose sum is σ = 15233904. Its totient is φ = 12744768.

The previous prime is 13976273. The next prime is 13976299. The reversal of 13976287 is 78267931.

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 13976287 - 2¹¹ = 13974239 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 (13976087) 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, 5398 + ... + 7555.

It is an arithmetic number, because the mean of its divisors is an integer number (1904238).

Almost surely, 2^13976287 is an apocalyptic number.

13976287 is a deficient number, since it is larger than the sum of its proper divisors (1257617).

13976287 is a wasteful number, since it uses less digits than its factorization.

13976287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13049.

The product of its digits is 127008, while the sum is 43.

The square root of 13976287 is about 3738.4872609118. The cubic root of 13976287 is about 240.8780740330.

The spelling of 13976287 in words is "thirteen million, nine hundred seventy-six thousand, two hundred eighty-seven".