2785628 has 12 divisors (see below), whose sum is σ = 5131560. Its totient is φ = 1319472.

The previous prime is 2785613. The next prime is 2785631. The reversal of 2785628 is 8265872.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a d-powerful number, because it can be written as 2⁵ + 7⁷ + 8² + 5⁹ + 6⁵ + 2¹⁰ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 2785591 and 2785600.

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, 18251 + ... + 18402.

It is an arithmetic number, because the mean of its divisors is an integer number (427630).

2^2785628 is an apocalyptic number.

It is an amenable number.

2785628 is a deficient number, since it is larger than the sum of its proper divisors (2345932).

2785628 is a wasteful number, since it uses less digits than its factorization.

2785628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36676 (or 36674 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2785628 is about 1669.0200717786. The cubic root of 2785628 is about 140.7044090105.

The spelling of 2785628 in words is "two million, seven hundred eighty-five thousand, six hundred twenty-eight".