2787055 has 8 divisors (see below), whose sum is σ = 3452544. Its totient is φ = 2157600.

The previous prime is 2787049. The next prime is 2787061. The reversal of 2787055 is 5507872.

It is an interprime number because it is at equal distance from previous prime (2787049) and next prime (2787061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2787055 - 2⁵ = 2787023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2787055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8836 + ... + 9145.

It is an arithmetic number, because the mean of its divisors is an integer number (431568).

2^2787055 is an apocalyptic number.

2787055 is a deficient number, since it is larger than the sum of its proper divisors (665489).

2787055 is a wasteful number, since it uses less digits than its factorization.

2787055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18017.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 2787055 is about 1669.4475134008. The cubic root of 2787055 is about 140.7284312316.

The spelling of 2787055 in words is "two million, seven hundred eighty-seven thousand, fifty-five".