13678534 has 8 divisors (see below), whose sum is σ = 20777760. Its totient is φ = 6752616.

The previous prime is 13678529. The next prime is 13678541. The reversal of 13678534 is 43587631.

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

It is a junction number, because it is equal to n+sod(n) for n = 13678493 and 13678502.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43129 + ... + 43444.

It is an arithmetic number, because the mean of its divisors is an integer number (2597220).

Almost surely, 2^13678534 is an apocalyptic number.

13678534 is a deficient number, since it is larger than the sum of its proper divisors (7099226).

13678534 is an equidigital number, since it uses as much as digits as its factorization.

13678534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86654.

The product of its digits is 60480, while the sum is 37.

The square root of 13678534 is about 3698.4502159688. The cubic root of 13678534 is about 239.1552127531.

The spelling of 13678534 in words is "thirteen million, six hundred seventy-eight thousand, five hundred thirty-four".