2887121928 has 32 divisors (see below), whose sum is σ = 7393851360. Its totient is φ = 938901120.

The previous prime is 2887121921. The next prime is 2887121929. The reversal of 2887121928 is 8291217882.

It is not an unprimeable number, because it can be changed into a prime (2887121921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466050 + ... + 1468017.

It is an arithmetic number, because the mean of its divisors is an integer number (231057855).

Almost surely, 2^2887121928 is an apocalyptic number.

It is an amenable number.

2887121928 is an abundant number, since it is smaller than the sum of its proper divisors (4506729432).

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

2887121928 is a wasteful number, since it uses less digits than its factorization.

2887121928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934117 (or 2934113 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 2887121928 is about 53731.9451350870. The cubic root of 2887121928 is about 1423.9291313151.

The spelling of 2887121928 in words is "two billion, eight hundred eighty-seven million, one hundred twenty-one thousand, nine hundred twenty-eight".