1306686 has 8 divisors (see below), whose sum is σ = 2613384. Its totient is φ = 435560.

The previous prime is 1306667. The next prime is 1306691. The reversal of 1306686 is 6866031.

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

1306686 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108885 + ... + 108896.

It is an arithmetic number, because the mean of its divisors is an integer number (326673).

2^1306686 is an apocalyptic number.

1306686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1306686 is a wasteful number, since it uses less digits than its factorization.

1306686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217786.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1306686 is about 1143.1036698393. The cubic root of 1306686 is about 109.3260723746.

The spelling of 1306686 in words is "one million, three hundred six thousand, six hundred eighty-six".