2877889 has 4 divisors (see below), whose sum is σ = 3289024. Its totient is φ = 2466756.

The previous prime is 2877887. The next prime is 2877899. The reversal of 2877889 is 9887782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2877889 - 2¹ = 2877887 is a prime.

It is a Duffinian number.

2877889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2877881) 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, 205557 + ... + 205570.

It is an arithmetic number, because the mean of its divisors is an integer number (822256).

2^2877889 is an apocalyptic number.

It is an amenable number.

2877889 is a deficient number, since it is larger than the sum of its proper divisors (411135).

2877889 is an equidigital number, since it uses as much as digits as its factorization.

2877889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411134.

The product of its digits is 451584, while the sum is 49.

The square root of 2877889 is about 1696.4342014944. The cubic root of 2877889 is about 142.2409616376.

The spelling of 2877889 in words is "two million, eight hundred seventy-seven thousand, eight hundred eighty-nine".