2786990 has 16 divisors (see below), whose sum is σ = 5037552. Its totient is φ = 1110144.

The previous prime is 2786981. The next prime is 2787013. The reversal of 2786990 is 996872.

2786990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2957 + ... + 3783.

It is an arithmetic number, because the mean of its divisors is an integer number (314847).

2^2786990 is an apocalyptic number.

2786990 is a deficient number, since it is larger than the sum of its proper divisors (2250562).

2786990 is a wasteful number, since it uses less digits than its factorization.

2786990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 2786990 is about 1669.4280457690. The cubic root of 2786990 is about 140.7273371952.

The spelling of 2786990 in words is "two million, seven hundred eighty-six thousand, nine hundred ninety".