2184881 has 2 divisors, whose sum is σ = 2184882. Its totient is φ = 2184880.

The previous prime is 2184877. The next prime is 2184893. The reversal of 2184881 is 1884812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 250000 = 1391^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2184881 - 2² = 2184877 is a prime.

It is a super-2 number, since 2×2184881² = 9547409968322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2184811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092440 + 1092441.

It is an arithmetic number, because the mean of its divisors is an integer number (1092441).

2^2184881 is an apocalyptic number.

It is an amenable number.

2184881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2184881 is an equidigital number, since it uses as much as digits as its factorization.

2184881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4096, while the sum is 32.

The square root of 2184881 is about 1478.1342970109. The cubic root of 2184881 is about 129.7605256019.

The spelling of 2184881 in words is "two million, one hundred eighty-four thousand, eight hundred eighty-one".