6742856 has 8 divisors (see below), whose sum is σ = 12642870. Its totient is φ = 3371424.

The previous prime is 6742817. The next prime is 6742859. The reversal of 6742856 is 6582476.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5597956 + 1144900 = 2366^2 + 1070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6742856² = 90932214073472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6742859) 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 as a sum of consecutive naturals, namely, 421421 + ... + 421436.

Almost surely, 2^6742856 is an apocalyptic number.

It is an amenable number.

6742856 is a deficient number, since it is larger than the sum of its proper divisors (5900014).

6742856 is a wasteful number, since it uses less digits than its factorization.

6742856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842863 (or 842859 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 6742856 is about 2596.7009839410. The cubic root of 6742856 is about 188.9214607933.

The spelling of 6742856 in words is "six million, seven hundred forty-two thousand, eight hundred fifty-six".