1386685 has 8 divisors (see below), whose sum is σ = 1670400. Its totient is φ = 1105104.

The previous prime is 1386667. The next prime is 1386691. The reversal of 1386685 is 5866831.

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 1386685 - 2⁷ = 1386557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (208800).

2^1386685 is an apocalyptic number.

It is an amenable number.

1386685 is a deficient number, since it is larger than the sum of its proper divisors (283715).

1386685 is an equidigital number, since it uses as much as digits as its factorization.

1386685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067.

The product of its digits is 34560, while the sum is 37.

The square root of 1386685 is about 1177.5758998893. The cubic root of 1386685 is about 111.5131128713.

The spelling of 1386685 in words is "one million, three hundred eighty-six thousand, six hundred eighty-five".