6724138 has 8 divisors (see below), whose sum is σ = 10617120. Its totient is φ = 3185100.

The previous prime is 6724111. The next prime is 6724139. The reversal of 6724138 is 8314276.

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

It is not an unprimeable number, because it can be changed into a prime (6724139) 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 in 3 ways as a sum of consecutive naturals, for example, 88438 + ... + 88513.

It is an arithmetic number, because the mean of its divisors is an integer number (1327140).

Almost surely, 2^6724138 is an apocalyptic number.

6724138 is a deficient number, since it is larger than the sum of its proper divisors (3892982).

6724138 is a wasteful number, since it uses less digits than its factorization.

6724138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176972.

The product of its digits is 8064, while the sum is 31.

The square root of 6724138 is about 2593.0942906111. The cubic root of 6724138 is about 188.7464850302.

The spelling of 6724138 in words is "six million, seven hundred twenty-four thousand, one hundred thirty-eight".