2778596 has 6 divisors (see below), whose sum is σ = 4862550. Its totient is φ = 1389296.

The previous prime is 2778583. The next prime is 2778619. The reversal of 2778596 is 6958772.

2778596 is digitally balanced in base 2 and base 5, because in such bases 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., 1537600 + 1240996 = 1240^2 + 1114^2 .

It is a d-powerful number, because it can be written as 2⁵ + 7 + 7⁷ + 8³ + 5⁹ + 9² + 6⁴ .

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, 347321 + ... + 347328.

It is an arithmetic number, because the mean of its divisors is an integer number (810425).

2^2778596 is an apocalyptic number.

It is an amenable number.

2778596 is a deficient number, since it is larger than the sum of its proper divisors (2083954).

2778596 is a wasteful number, since it uses less digits than its factorization.

2778596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694653 (or 694651 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 2778596 is about 1666.9121152598. The cubic root of 2778596 is about 140.5859118356.

The spelling of 2778596 in words is "two million, seven hundred seventy-eight thousand, five hundred ninety-six".