2887728 has 20 divisors (see below), whose sum is σ = 7460088. Its totient is φ = 962560.

The previous prime is 2887721. The next prime is 2887741. The reversal of 2887728 is 8277882.

It is a self number, because there is not a number n which added to its sum of digits gives 2887728.

It is not an unprimeable number, because it can be changed into a prime (2887721) 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, 30033 + ... + 30128.

2^2887728 is an apocalyptic number.

It is an amenable number.

2887728 is an abundant number, since it is smaller than the sum of its proper divisors (4572360).

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

2887728 is a wasteful number, since it uses less digits than its factorization.

2887728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60172 (or 60166 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 2887728 is about 1699.3316333194. The cubic root of 2887728 is about 142.4028762622.

The spelling of 2887728 in words is "two million, eight hundred eighty-seven thousand, seven hundred twenty-eight".