2785875 has 64 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 1267200.

The previous prime is 2785873. The next prime is 2785879. The reversal of 2785875 is 5785872.

It is a happy number.

It is not a de Polignac number, because 2785875 - 2¹ = 2785873 is a prime.

It is a super-2 number, since 2×2785875² = 15522199031250, which contains 22 as substring.

2785875 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121114 + ... + 121136.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

2^2785875 is an apocalyptic number.

2785875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2785875 is a deficient number, since it is larger than the sum of its proper divisors (2605485).

2785875 is a wasteful number, since it uses less digits than its factorization.

2785875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 67 counting only the distinct ones).

The product of its digits is 156800, while the sum is 42.

The square root of 2785875 is about 1669.0940656536. The cubic root of 2785875 is about 140.7085676133.

The spelling of 2785875 in words is "two million, seven hundred eighty-five thousand, eight hundred seventy-five".