6342839 has 2 divisors, whose sum is σ = 6342840. Its totient is φ = 6342838.

The previous prime is 6342797. The next prime is 6342857. The reversal of 6342839 is 9382436.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6342839 - 2¹² = 6338743 is a prime.

It is a super-3 number, since 3×6342839³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6⁴ + 3¹³ + 4² + 2¹⁹ + 8⁷ + 3¹³ + 9⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 6342799 and 6342808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6342239) 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 as a sum of consecutive naturals, namely, 3171419 + 3171420.

It is an arithmetic number, because the mean of its divisors is an integer number (3171420).

Almost surely, 2^6342839 is an apocalyptic number.

6342839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6342839 is an equidigital number, since it uses as much as digits as its factorization.

6342839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 6342839 is about 2518.4993547746. The cubic root of 6342839 is about 185.1091539917.

The spelling of 6342839 in words is "six million, three hundred forty-two thousand, eight hundred thirty-nine".