2805895 has 16 divisors (see below), whose sum is σ = 3584160. Its totient is φ = 2104704.

The previous prime is 2805851. The next prime is 2805899. The reversal of 2805895 is 5985082.

It is a happy number.

It is not a de Polignac number, because 2805895 - 2¹¹ = 2803847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an Ulam number.

2805895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5104 + ... + 5626.

It is an arithmetic number, because the mean of its divisors is an integer number (224010).

2^2805895 is an apocalyptic number.

2805895 is a deficient number, since it is larger than the sum of its proper divisors (778265).

2805895 is a wasteful number, since it uses less digits than its factorization.

2805895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 2805895 is about 1675.0805950760. The cubic root of 2805895 is about 141.0448191775.

The spelling of 2805895 in words is "two million, eight hundred five thousand, eight hundred ninety-five".