6742 has 4 divisors (see below), whose sum is σ = 10116. Its totient is φ = 3370.

The previous prime is 6737. The next prime is 6761. The reversal of 6742 is 2476.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1684 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (2529).

2⁶⁷⁴² is an apocalyptic number.

6742 is a deficient number, since it is larger than the sum of its proper divisors (3374).

6742 is a wasteful number, since it uses less digits than its factorization.

6742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373.

The product of its digits is 336, while the sum is 19.

The square root of 6742 is about 82.1096827420. The cubic root of 6742 is about 18.8913465981.

It can be divided in two parts, 674 and 2, that added together give a palindrome (676).

The spelling of 6742 in words is "six thousand, seven hundred forty-two".