6717138 has 8 divisors (see below), whose sum is σ = 13434288. Its totient is φ = 2239044.

The previous prime is 6717131. The next prime is 6717143. The reversal of 6717138 is 8317176.

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

6717138 is an admirable number.

It is a super-2 number, since 2×6717138² = 90239885822088, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6717099 and 6717108.

It is not an unprimeable number, because it can be changed into a prime (6717131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559756 + ... + 559767.

It is an arithmetic number, because the mean of its divisors is an integer number (1679286).

Almost surely, 2^6717138 is an apocalyptic number.

6717138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6717138 is a wasteful number, since it uses less digits than its factorization.

6717138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119528.

The product of its digits is 7056, while the sum is 33.

The square root of 6717138 is about 2591.7442003408. The cubic root of 6717138 is about 188.6809656463.

It can be divided in two parts, 67 and 17138, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 6717138 in words is "six million, seven hundred seventeen thousand, one hundred thirty-eight".