2780068 has 6 divisors (see below), whose sum is σ = 4865126. Its totient is φ = 1390032.

The previous prime is 2780053. The next prime is 2780077. The reversal of 2780068 is 8600872.

2780068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1617984 + 1162084 = 1272^2 + 1078^2 .

It is an unprimeable number.

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, 347505 + ... + 347512.

2^2780068 is an apocalyptic number.

It is an amenable number.

2780068 is a deficient number, since it is larger than the sum of its proper divisors (2085058).

2780068 is a wasteful number, since it uses less digits than its factorization.

2780068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695021 (or 695019 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2780068 is about 1667.3535917735. The cubic root of 2780068 is about 140.6107332358.

The spelling of 2780068 in words is "two million, seven hundred eighty thousand, sixty-eight".