2888381 has 2 divisors, whose sum is σ = 2888382. Its totient is φ = 2888380.

The previous prime is 2888357. The next prime is 2888383. The reversal of 2888381 is 1838882.

2888381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2859481 + 28900 = 1691^2 + 170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2888381 is a prime.

It is a super-2 number, since 2×2888381² = 16685489602322, which contains 22 as substring.

Together with 2888383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2888383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444190 + 1444191.

It is an arithmetic number, because the mean of its divisors is an integer number (1444191).

2^2888381 is an apocalyptic number.

It is an amenable number.

2888381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2888381 is an equidigital number, since it uses as much as digits as its factorization.

2888381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24576, while the sum is 38.

The square root of 2888381 is about 1699.5237568213. The cubic root of 2888381 is about 142.4136092756.

The spelling of 2888381 in words is "two million, eight hundred eighty-eight thousand, three hundred eighty-one".