1307686 has 8 divisors (see below), whose sum is σ = 1972080. Its totient is φ = 650328.

The previous prime is 1307671. The next prime is 1307689. The reversal of 1307686 is 6867031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307689) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1266 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (246510).

2^1307686 is an apocalyptic number.

1307686 is a deficient number, since it is larger than the sum of its proper divisors (664394).

1307686 is a wasteful number, since it uses less digits than its factorization.

1307686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1307686 is about 1143.5409918320. The cubic root of 1307686 is about 109.3539541547.

The spelling of 1307686 in words is "one million, three hundred seven thousand, six hundred eighty-six".