1308839 has 6 divisors (see below), whose sum is σ = 1522584. Its totient is φ = 1121820.

The previous prime is 1308829. The next prime is 1308841. The reversal of 1308839 is 9388031.

It is not a de Polignac number, because 1308839 - 2⁸ = 1308583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308829) 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 5 ways as a sum of consecutive naturals, for example, 13307 + ... + 13404.

It is an arithmetic number, because the mean of its divisors is an integer number (253764).

2^1308839 is an apocalyptic number.

1308839 is a deficient number, since it is larger than the sum of its proper divisors (213745).

1308839 is an equidigital number, since it uses as much as digits as its factorization.

1308839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26725 (or 26718 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1308839 is about 1144.0450165968. The cubic root of 1308839 is about 109.3860842100.

The spelling of 1308839 in words is "one million, three hundred eight thousand, eight hundred thirty-nine".