2891168 has 24 divisors (see below), whose sum is σ = 6505632. Its totient is φ = 1238976.

The previous prime is 2891137. The next prime is 2891171. The reversal of 2891168 is 8611982.

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, 6230 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (271068).

2^2891168 is an apocalyptic number.

2891168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2891168 is an abundant number, since it is smaller than the sum of its proper divisors (3614464).

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

2891168 is a wasteful number, since it uses less digits than its factorization.

2891168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12924 (or 12916 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 2891168 is about 1700.3434947092. The cubic root of 2891168 is about 142.4593995342.

The spelling of 2891168 in words is "two million, eight hundred ninety-one thousand, one hundred sixty-eight".