6740856 has 48 divisors (see below), whose sum is σ = 18378360. Its totient is φ = 2232000.

The previous prime is 6740849. The next prime is 6740861. The reversal of 6740856 is 6580476.

It is a happy number.

It is a super-2 number, since 2×6740856² = 90878279225472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6740856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17886 + ... + 18258.

Almost surely, 2^6740856 is an apocalyptic number.

It is an amenable number.

6740856 is an abundant number, since it is smaller than the sum of its proper divisors (11637504).

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

6740856 is a wasteful number, since it uses less digits than its factorization.

6740856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 6740856 is about 2596.3158513555. The cubic root of 6740856 is about 188.9027802676.

The spelling of 6740856 in words is "six million, seven hundred forty thousand, eight hundred fifty-six".