6728338 has 8 divisors (see below), whose sum is σ = 10144332. Its totient is φ = 3346896.

The previous prime is 6728327. The next prime is 6728347. The reversal of 6728338 is 8338276.

It can be written as a sum of positive squares in 2 ways, for example, as 6185169 + 543169 = 2487^2 + 737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6728297 and 6728306.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8145 + ... + 8932.

Almost surely, 2^6728338 is an apocalyptic number.

6728338 is the 1387-th centered heptagonal number.

6728338 is a deficient number, since it is larger than the sum of its proper divisors (3415994).

6728338 is a wasteful number, since it uses less digits than its factorization.

6728338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17276.

The product of its digits is 48384, while the sum is 37.

The square root of 6728338 is about 2593.9040074760. The cubic root of 6728338 is about 188.7857748367.

It can be divided in two parts, 6728 and 338, that multiplied together give a square (2274064 = 1508²).

The spelling of 6728338 in words is "six million, seven hundred twenty-eight thousand, three hundred thirty-eight".