2887221632 has 16 divisors (see below), whose sum is σ = 5751887100. Its totient is φ = 1443610752.

The previous prime is 2887221619. The next prime is 2887221637. The reversal of 2887221632 is 2361227882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 2887221632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887221637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278082 + ... + 11278337.

Almost surely, 2^2887221632 is an apocalyptic number.

It is an amenable number.

2887221632 is a deficient number, since it is larger than the sum of its proper divisors (2864665468).

2887221632 is an equidigital number, since it uses as much as digits as its factorization.

2887221632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22556433 (or 22556421 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 2887221632 is about 53732.8729177959. The cubic root of 2887221632 is about 1423.9455224709.

The spelling of 2887221632 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, six hundred thirty-two".