1208839 has 4 divisors (see below), whose sum is σ = 1215360. Its totient is φ = 1202320.

The previous prime is 1208833. The next prime is 1208843. The reversal of 1208839 is 9388021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9388021 = 59 ⋅159119.

It is a cyclic number.

It is not a de Polignac number, because 1208839 - 2¹¹ = 1206791 is a prime.

It is a super-2 number, since 2×1208839² = 2922583455842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1208839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2974 + ... + 3355.

It is an arithmetic number, because the mean of its divisors is an integer number (303840).

2^1208839 is an apocalyptic number.

1208839 is a deficient number, since it is larger than the sum of its proper divisors (6521).

1208839 is an equidigital number, since it uses as much as digits as its factorization.

1208839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1208839 is about 1099.4721460774. The cubic root of 1208839 is about 106.5261311120.

The spelling of 1208839 in words is "one million, two hundred eight thousand, eight hundred thirty-nine".