2887221588 has 48 divisors (see below), whose sum is σ = 7213328640. Its totient is φ = 895611904.

The previous prime is 2887221583. The next prime is 2887221593. The reversal of 2887221588 is 8851227882.

It is an interprime number because it is at equal distance from previous prime (2887221583) and next prime (2887221593).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 2887221588.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887221583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61356 + ... + 97667.

It is an arithmetic number, because the mean of its divisors is an integer number (150277680).

Almost surely, 2^2887221588 is an apocalyptic number.

It is an amenable number.

2887221588 is an abundant number, since it is smaller than the sum of its proper divisors (4326107052).

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

2887221588 is a wasteful number, since it uses less digits than its factorization.

2887221588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159136 (or 159134 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 51.

The square root of 2887221588 is about 53732.8725083631. The cubic root of 2887221588 is about 1423.9455152374.

The spelling of 2887221588 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, five hundred eighty-eight".