986865 has 16 divisors (see below), whose sum is σ = 1722816. Its totient is φ = 478400.

The previous prime is 986857. The next prime is 986903. The reversal of 986865 is 568689.

It is not a de Polignac number, because 986865 - 2³ = 986857 is a prime.

It is a super-3 number, since 3×986865³ = 2883330955550293875, which contains 333 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (107676).

2⁹⁸⁶⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

986865 is a deficient number, since it is larger than the sum of its proper divisors (735951).

986865 is a wasteful number, since it uses less digits than its factorization.

986865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000.

The product of its digits is 103680, while the sum is 42.

The square root of 986865 is about 993.4107911635. The cubic root of 986865 is about 99.5602355741.

The spelling of 986865 in words is "nine hundred eighty-six thousand, eight hundred sixty-five".