2887836 has 48 divisors (see below), whose sum is σ = 7956480. Its totient is φ = 797760.

The previous prime is 2887817. The next prime is 2887847. The reversal of 2887836 is 6387882.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (129024) is a multiple of the sum of its prime divisors (1152).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (165760).

2^2887836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2887836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3978240).

2887836 is an abundant number, since it is smaller than the sum of its proper divisors (5068644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2887836 is a wasteful number, since it uses less digits than its factorization.

2887836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1152 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2887836 is about 1699.3634102216. The cubic root of 2887836 is about 142.4046515124.

The spelling of 2887836 in words is "two million, eight hundred eighty-seven thousand, eight hundred thirty-six".