986999 has 8 divisors (see below), whose sum is σ = 1109472. Its totient is φ = 871200.

The previous prime is 986989. The next prime is 987013. The reversal of 986999 is 999689.

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 986999 - 2⁴ = 986983 is a prime.

986999 is a modest number, since divided by 999 gives 986 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (138684).

2⁹⁸⁶⁹⁹⁹ is an apocalyptic number.

986999 is a deficient number, since it is larger than the sum of its proper divisors (122473).

986999 is a wasteful number, since it uses less digits than its factorization.

986999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337.

The product of its digits is 314928, while the sum is 50.

The square root of 986999 is about 993.4782332794. The cubic root of 986999 is about 99.5647415831.

The spelling of 986999 in words is "nine hundred eighty-six thousand, nine hundred ninety-nine".