2885215 has 4 divisors (see below), whose sum is σ = 3462264. Its totient is φ = 2308168.

The previous prime is 2885209. The next prime is 2885219. The reversal of 2885215 is 5125882.

2885215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5125882 = 2 ⋅2562941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2885215 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁷ + 8⁴ + 8⁶ + 5³ + 2²¹ + 1 + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2885219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288517 + ... + 288526.

It is an arithmetic number, because the mean of its divisors is an integer number (865566).

2^2885215 is an apocalyptic number.

2885215 is a deficient number, since it is larger than the sum of its proper divisors (577049).

2885215 is an equidigital number, since it uses as much as digits as its factorization.

2885215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577048.

The product of its digits is 6400, while the sum is 31.

The square root of 2885215 is about 1698.5920640342. The cubic root of 2885215 is about 142.3615563174.

It can be divided in two parts, 28 and 85215, that multiplied together give a triangular number (2386020 = T₂₁₈₄).

The spelling of 2885215 in words is "two million, eight hundred eighty-five thousand, two hundred fifteen".