986687 has 8 divisors (see below), whose sum is σ = 1078560. Its totient is φ = 897120.

The previous prime is 986659. The next prime is 986693. The reversal of 986687 is 786689.

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 986687 - 2¹⁴ = 970303 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986687.

It is not an unprimeable number, because it can be changed into a prime (986617) 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 7 ways as a sum of consecutive naturals, for example, 389 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (134820).

2⁹⁸⁶⁶⁸⁷ is an apocalyptic number.

986687 is a deficient number, since it is larger than the sum of its proper divisors (91873).

986687 is a wasteful number, since it uses less digits than its factorization.

986687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its digits is 145152, while the sum is 44.

The square root of 986687 is about 993.3211967939. The cubic root of 986687 is about 99.5542493492.

The spelling of 986687 in words is "nine hundred eighty-six thousand, six hundred eighty-seven".