2768649 has 8 divisors (see below), whose sum is σ = 3975552. Its totient is φ = 1703760.

The previous prime is 2768639. The next prime is 2768651. The reversal of 2768649 is 9468672.

2768649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2768649 - 2¹⁵ = 2735881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2768649.

It is not an unprimeable number, because it can be changed into a prime (2768609) 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 in 7 ways as a sum of consecutive naturals, for example, 35457 + ... + 35534.

It is an arithmetic number, because the mean of its divisors is an integer number (496944).

2^2768649 is an apocalyptic number.

It is an amenable number.

2768649 is a deficient number, since it is larger than the sum of its proper divisors (1206903).

2768649 is a wasteful number, since it uses less digits than its factorization.

2768649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71007.

The product of its digits is 145152, while the sum is 42.

The square root of 2768649 is about 1663.9257795948. The cubic root of 2768649 is about 140.4179516985.

The spelling of 2768649 in words is "two million, seven hundred sixty-eight thousand, six hundred forty-nine".