2782885 has 16 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 1824768.

The previous prime is 2782877. The next prime is 2782903. The reversal of 2782885 is 5882872.

It is a cyclic number.

It is not a de Polignac number, because 2782885 - 2³ = 2782877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (248976).

2^2782885 is an apocalyptic number.

It is an amenable number.

2782885 is a deficient number, since it is larger than the sum of its proper divisors (1200731).

2782885 is a wasteful number, since it uses less digits than its factorization.

2782885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492.

The product of its digits is 71680, while the sum is 40.

The square root of 2782885 is about 1668.1981297196. The cubic root of 2782885 is about 140.6582100988.

The spelling of 2782885 in words is "two million, seven hundred eighty-two thousand, eight hundred eighty-five".