1384839 has 6 divisors (see below), whose sum is σ = 2000336. Its totient is φ = 923220.

The previous prime is 1384829. The next prime is 1384843. The reversal of 1384839 is 9384831.

It is not a de Polignac number, because 1384839 - 2⁷ = 1384711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76927 + ... + 76944.

2^1384839 is an apocalyptic number.

1384839 is a deficient number, since it is larger than the sum of its proper divisors (615497).

1384839 is a wasteful number, since it uses less digits than its factorization.

1384839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153877 (or 153874 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1384839 is about 1176.7918252605. The cubic root of 1384839 is about 111.4636076075.

The spelling of 1384839 in words is "one million, three hundred eighty-four thousand, eight hundred thirty-nine".