966839 has 4 divisors (see below), whose sum is σ = 969024. Its totient is φ = 964656.

The previous prime is 966817. The next prime is 966863. The reversal of 966839 is 938669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938669 = 97 ⋅9677.

It is a cyclic number.

It is not a de Polignac number, because 966839 - 2⁸ = 966583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 966796 and 966805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (242256).

2⁹⁶⁶⁸³⁹ is an apocalyptic number.

966839 is a deficient number, since it is larger than the sum of its proper divisors (2185).

966839 is a wasteful number, since it uses less digits than its factorization.

966839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its digits is 69984, while the sum is 41.

The square root of 966839 is about 983.2797160524. The cubic root of 966839 is about 98.8821847821.

The spelling of 966839 in words is "nine hundred sixty-six thousand, eight hundred thirty-nine".