13934987 has 8 divisors (see below), whose sum is σ = 15863040. Its totient is φ = 12117160.

The previous prime is 13934969. The next prime is 13935001. The reversal of 13934987 is 78943931.

It is a happy number.

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

It is not a de Polignac number, because 13934987 - 2¹⁶ = 13869451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13931987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27287 + ... + 27792.

It is an arithmetic number, because the mean of its divisors is an integer number (1982880).

Almost surely, 2^13934987 is an apocalyptic number.

13934987 is a deficient number, since it is larger than the sum of its proper divisors (1928053).

13934987 is a wasteful number, since it uses less digits than its factorization.

13934987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55113.

The product of its digits is 163296, while the sum is 44.

The square root of 13934987 is about 3732.9595497407. The cubic root of 13934987 is about 240.6405746258.

The spelling of 13934987 in words is "thirteen million, nine hundred thirty-four thousand, nine hundred eighty-seven".