986611 has 4 divisors (see below), whose sum is σ = 988632. Its totient is φ = 984592.

The previous prime is 986599. The next prime is 986617. The reversal of 986611 is 116689.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 986611 - 2¹¹ = 984563 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 10.

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 3 ways as a sum of consecutive naturals, for example, 231 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (247158).

2⁹⁸⁶⁶¹¹ is an apocalyptic number.

986611 is a deficient number, since it is larger than the sum of its proper divisors (2021).

986611 is a wasteful number, since it uses less digits than its factorization.

986611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020.

The product of its digits is 2592, while the sum is 31.

The square root of 986611 is about 993.2829405562. The cubic root of 986611 is about 99.5516932136.

The spelling of 986611 in words is "nine hundred eighty-six thousand, six hundred eleven".