2778708 has 12 divisors (see below), whose sum is σ = 6483680. Its totient is φ = 926232.

The previous prime is 2778697. The next prime is 2778739. The reversal of 2778708 is 8078772.

2778708 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115768 + ... + 115791.

2^2778708 is an apocalyptic number.

It is an amenable number.

2778708 is an abundant number, since it is smaller than the sum of its proper divisors (3704972).

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

2778708 is a wasteful number, since it uses less digits than its factorization.

2778708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231566 (or 231564 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 2778708 is about 1666.9457099738. The cubic root of 2778708 is about 140.5878007285.

It can be divided in two parts, 2778 and 708, that added together give a triangular number (3486 = T₈₃).

The spelling of 2778708 in words is "two million, seven hundred seventy-eight thousand, seven hundred eight".