2778902 has 32 divisors (see below), whose sum is σ = 5191680. Its totient is φ = 1088640.

The previous prime is 2778901. The next prime is 2778907. The reversal of 2778902 is 2098772.

2778902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778901) 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 15 ways as a sum of consecutive naturals, for example, 8078 + ... + 8414.

It is an arithmetic number, because the mean of its divisors is an integer number (162240).

2^2778902 is an apocalyptic number.

2778902 is a deficient number, since it is larger than the sum of its proper divisors (2412778).

2778902 is a wasteful number, since it uses less digits than its factorization.

2778902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2778902 is about 1667.0038992156. The cubic root of 2778902 is about 140.5910724407.

The spelling of 2778902 in words is "two million, seven hundred seventy-eight thousand, nine hundred two".