986939 has 4 divisors (see below), whose sum is σ = 989256. Its totient is φ = 984624.

The previous prime is 986933. The next prime is 986941. The reversal of 986939 is 939689.

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 986939 - 2¹² = 982843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 986939.

It is not an unprimeable number, because it can be changed into a prime (986933) 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, 314 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (247314).

2⁹⁸⁶⁹³⁹ is an apocalyptic number.

986939 is a deficient number, since it is larger than the sum of its proper divisors (2317).

986939 is a wasteful number, since it uses less digits than its factorization.

986939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its digits is 104976, while the sum is 44.

The square root of 986939 is about 993.4480358831. The cubic root of 986939 is about 99.5627240175.

The spelling of 986939 in words is "nine hundred eighty-six thousand, nine hundred thirty-nine".