2869885 has 4 divisors (see below), whose sum is σ = 3443868. Its totient is φ = 2295904.

The previous prime is 2869883. The next prime is 2869901. The reversal of 2869885 is 5889682.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5889682 = 2 ⋅2944841.

It can be written as a sum of positive squares in 2 ways, for example, as 870489 + 1999396 = 933^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2869885 - 2¹ = 2869883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2869883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286984 + ... + 286993.

It is an arithmetic number, because the mean of its divisors is an integer number (860967).

2^2869885 is an apocalyptic number.

It is an amenable number.

2869885 is a deficient number, since it is larger than the sum of its proper divisors (573983).

2869885 is an equidigital number, since it uses as much as digits as its factorization.

2869885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573982.

The product of its digits is 276480, while the sum is 46.

The square root of 2869885 is about 1694.0734930929. The cubic root of 2869885 is about 142.1089720953.

The spelling of 2869885 in words is "two million, eight hundred sixty-nine thousand, eight hundred eighty-five".