6674839 has 2 divisors, whose sum is σ = 6674840. Its totient is φ = 6674838.

The previous prime is 6674821. The next prime is 6674881. The reversal of 6674839 is 9384766.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6674839 - 2⁷ = 6674711 is a prime.

It is a d-powerful number, because it can be written as 6² + 6⁷ + 7⁵ + 4⁴ + 8³ + 3¹³ + 9⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 6674795 and 6674804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6674809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3337419 + 3337420.

It is an arithmetic number, because the mean of its divisors is an integer number (3337420).

Almost surely, 2^6674839 is an apocalyptic number.

6674839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6674839 is an equidigital number, since it uses as much as digits as its factorization.

6674839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 6674839 is about 2583.5709783166. The cubic root of 6674839 is about 188.2840789742.

The spelling of 6674839 in words is "six million, six hundred seventy-four thousand, eight hundred thirty-nine".