2887988 has 6 divisors (see below), whose sum is σ = 5053986. Its totient is φ = 1443992.

The previous prime is 2887987. The next prime is 2887993. The reversal of 2887988 is 8897882.

It can be written as a sum of positive squares in only one way, i.e., 2598544 + 289444 = 1612^2 + 538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360995 + ... + 361002.

It is an arithmetic number, because the mean of its divisors is an integer number (842331).

2^2887988 is an apocalyptic number.

It is an amenable number.

2887988 is a deficient number, since it is larger than the sum of its proper divisors (2165998).

2887988 is a wasteful number, since it uses less digits than its factorization.

2887988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722001 (or 721999 counting only the distinct ones).

The product of its digits is 516096, while the sum is 50.

The square root of 2887988 is about 1699.4081322625. The cubic root of 2887988 is about 142.4071499377.

The spelling of 2887988 in words is "two million, eight hundred eighty-seven thousand, nine hundred eighty-eight".