13078686 has 16 divisors (see below), whose sum is σ = 26864784. Its totient is φ = 4241664.

The previous prime is 13078679. The next prime is 13078691. The reversal of 13078686 is 68687031.

13078686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29235 + ... + 29678.

It is an arithmetic number, because the mean of its divisors is an integer number (1679049).

Almost surely, 2^13078686 is an apocalyptic number.

13078686 is an abundant number, since it is smaller than the sum of its proper divisors (13786098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13078686 is a wasteful number, since it uses less digits than its factorization.

13078686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58955.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 13078686 is about 3616.4465985273. The cubic root of 13078686 is about 235.6069177023.

The spelling of 13078686 in words is "thirteen million, seventy-eight thousand, six hundred eighty-six".