1078839 has 20 divisors (see below), whose sum is σ = 1698840. Its totient is φ = 680400.

The previous prime is 1078817. The next prime is 1078841. The reversal of 1078839 is 9388701.

It is not a de Polignac number, because 1078839 - 2⁵ = 1078807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078849) 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 19 ways as a sum of consecutive naturals, for example, 1189 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (84942).

2^1078839 is an apocalyptic number.

1078839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1078839 is a deficient number, since it is larger than the sum of its proper divisors (620001).

1078839 is an equidigital number, since it uses as much as digits as its factorization.

1078839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1078839 is about 1038.6717479551. The cubic root of 1078839 is about 102.5617791359.

The spelling of 1078839 in words is "one million, seventy-eight thousand, eight hundred thirty-nine".