2768779 has 8 divisors (see below), whose sum is σ = 2994992. Its totient is φ = 2544480.

The previous prime is 2768767. The next prime is 2768783. The reversal of 2768779 is 9778672.

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

It is a cyclic number.

It is not a de Polignac number, because 2768779 - 2⁷ = 2768651 is a prime.

It is a super-2 number, since 2×2768779² = 15332274301682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2768789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (374374).

2^2768779 is an apocalyptic number.

2768779 is a deficient number, since it is larger than the sum of its proper divisors (226213).

2768779 is a wasteful number, since it uses less digits than its factorization.

2768779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957.

The product of its digits is 296352, while the sum is 46.

The square root of 2768779 is about 1663.9648433786. The cubic root of 2768779 is about 140.4201494067.

The spelling of 2768779 in words is "two million, seven hundred sixty-eight thousand, seven hundred seventy-nine".