2881688 has 16 divisors (see below), whose sum is σ = 5529480. Its totient is φ = 1407168.

The previous prime is 2881657. The next prime is 2881699. The reversal of 2881688 is 8861882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845 + ... + 4532.

2^2881688 is an apocalyptic number.

It is an amenable number.

2881688 is a deficient number, since it is larger than the sum of its proper divisors (2647792).

2881688 is a wasteful number, since it uses less digits than its factorization.

2881688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426 (or 8422 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 2881688 is about 1697.5535337656. The cubic root of 2881688 is about 142.3035232133.

The spelling of 2881688 in words is "two million, eight hundred eighty-one thousand, six hundred eighty-eight".