2768656 has 20 divisors (see below), whose sum is σ = 5852304. Its totient is φ = 1258400.

The previous prime is 2768651. The next prime is 2768657. The reversal of 2768656 is 6568672.

It is a super-3 number, since 3×2768656³ = 63669032626273333248, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2768651) 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, 7690 + ... + 8041.

2^2768656 is an apocalyptic number.

It is an amenable number.

2768656 is an abundant number, since it is smaller than the sum of its proper divisors (3083648).

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

2768656 is a wasteful number, since it uses less digits than its factorization.

2768656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15750 (or 15744 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 2768656 is about 1663.9278830526. The cubic root of 2768656 is about 140.4180700383.

The spelling of 2768656 in words is "two million, seven hundred sixty-eight thousand, six hundred fifty-six".