13967487 has 6 divisors (see below), whose sum is σ = 20175272. Its totient is φ = 9311652.

The previous prime is 13967449. The next prime is 13967519. The reversal of 13967487 is 78476931.

It is not a de Polignac number, because 13967487 - 2¹⁵ = 13934719 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 (13967087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 775963 + ... + 775980.

Almost surely, 2^13967487 is an apocalyptic number.

13967487 is a deficient number, since it is larger than the sum of its proper divisors (6207785).

13967487 is a wasteful number, since it uses less digits than its factorization.

13967487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551949 (or 1551946 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 13967487 is about 3737.3101289564. The cubic root of 13967487 is about 240.8275080972.

The spelling of 13967487 in words is "thirteen million, nine hundred sixty-seven thousand, four hundred eighty-seven".