2852865 has 12 divisors (see below), whose sum is σ = 4945044. Its totient is φ = 1521504.

The previous prime is 2852849. The next prime is 2852873. The reversal of 2852865 is 5682582.

It can be written as a sum of positive squares in 2 ways, for example, as 1046529 + 1806336 = 1023^2 + 1344^2 .

It is not a de Polignac number, because 2852865 - 2⁴ = 2852849 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31654 + ... + 31743.

It is an arithmetic number, because the mean of its divisors is an integer number (412087).

It is a Proth number, since it is equal to 1393 ⋅ 2¹¹ + 1 and 1393 < 2¹¹.

2^2852865 is an apocalyptic number.

It is an amenable number.

2852865 is a deficient number, since it is larger than the sum of its proper divisors (2092179).

2852865 is a wasteful number, since it uses less digits than its factorization.

2852865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63408 (or 63405 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 2852865 is about 1689.0426282365. The cubic root of 2852865 is about 141.8274867259.

The spelling of 2852865 in words is "two million, eight hundred fifty-two thousand, eight hundred sixty-five".