4394881 has 2 divisors, whose sum is σ = 4394882. Its totient is φ = 4394880.

The previous prime is 4394879. The next prime is 4394893. The reversal of 4394881 is 1884934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 330625 = 2016^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394881 - 2¹ = 4394879 is a prime.

It is a super-2 number, since 2×4394881² = 38629958008322, which contains 22 as substring.

Together with 4394879, it forms a pair of twin primes.

It is a Chen prime.

4394881 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4394881.

It is not a weakly prime, because it can be changed into another prime (4394801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197440 + 2197441.

It is an arithmetic number, because the mean of its divisors is an integer number (2197441).

Almost surely, 2^4394881 is an apocalyptic number.

It is an amenable number.

4394881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394881 is an equidigital number, since it uses as much as digits as its factorization.

4394881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 4394881 is about 2096.3971474890. The cubic root of 4394881 is about 163.8006824061.

The spelling of 4394881 in words is "four million, three hundred ninety-four thousand, eight hundred eighty-one".