13745686 has 8 divisors (see below), whose sum is σ = 20665800. Its totient is φ = 6857088.

The previous prime is 13745657. The next prime is 13745689. The reversal of 13745686 is 68654731.

It is a happy number.

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

It is a super-2 number, since 2×13745686² = 377887767221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745689) 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 3 ways as a sum of consecutive naturals, for example, 6756 + ... + 8551.

It is an arithmetic number, because the mean of its divisors is an integer number (2583225).

Almost surely, 2^13745686 is an apocalyptic number.

13745686 is a deficient number, since it is larger than the sum of its proper divisors (6920114).

13745686 is a wasteful number, since it uses less digits than its factorization.

13745686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758.

The product of its digits is 120960, while the sum is 40.

The square root of 13745686 is about 3707.5174982729. The cubic root of 13745686 is about 239.5459354624.

The spelling of 13745686 in words is "thirteen million, seven hundred forty-five thousand, six hundred eighty-six".