2792778 has 8 divisors (see below), whose sum is σ = 5585568. Its totient is φ = 930924.

The previous prime is 2792773. The next prime is 2792809. The reversal of 2792778 is 8772972.

2792778 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.

2792778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2792771) 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 3 ways as a sum of consecutive naturals, for example, 232726 + ... + 232737.

It is an arithmetic number, because the mean of its divisors is an integer number (698196).

2^2792778 is an apocalyptic number.

2792778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2792778 is a wasteful number, since it uses less digits than its factorization.

2792778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465468.

The product of its digits is 98784, while the sum is 42.

The square root of 2792778 is about 1671.1606745014. The cubic root of 2792778 is about 140.8246903262.

It can be divided in two parts, 2792 and 778, that added together give a triangular number (3570 = T₈₄).

The spelling of 2792778 in words is "two million, seven hundred ninety-two thousand, seven hundred seventy-eight".