13706987 has 8 divisors (see below), whose sum is σ = 15780576. Its totient is φ = 11662272.

The previous prime is 13706977. The next prime is 13706993. The reversal of 13706987 is 78960731.

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 13706987 - 2⁴ = 13706971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13706977) 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 7 ways as a sum of consecutive naturals, for example, 6188 + ... + 8105.

It is an arithmetic number, because the mean of its divisors is an integer number (1972572).

Almost surely, 2^13706987 is an apocalyptic number.

13706987 is a deficient number, since it is larger than the sum of its proper divisors (2073589).

13706987 is a wasteful number, since it uses less digits than its factorization.

13706987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 13706987 is about 3702.2948288865. The cubic root of 13706987 is about 239.3209218008.

The spelling of 13706987 in words is "thirteen million, seven hundred six thousand, nine hundred eighty-seven".