13719087 has 12 divisors (see below), whose sum is σ = 19870240. Its totient is φ = 9121248.

The previous prime is 13719071. The next prime is 13719113. The reversal of 13719087 is 78091731.

It is not a de Polignac number, because 13719087 - 2⁴ = 13719071 is a prime.

It is a super-2 number, since 2×13719087² = 376426696227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13719037) 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 11 ways as a sum of consecutive naturals, for example, 1818 + ... + 5544.

Almost surely, 2^13719087 is an apocalyptic number.

13719087 is a deficient number, since it is larger than the sum of its proper divisors (6151153).

13719087 is a wasteful number, since it uses less digits than its factorization.

13719087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142 (or 4139 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 13719087 is about 3703.9285900244. The cubic root of 13719087 is about 239.3913221855.

The spelling of 13719087 in words is "thirteen million, seven hundred nineteen thousand, eighty-seven".