2836381 has 2 divisors, whose sum is σ = 2836382. Its totient is φ = 2836380.

The previous prime is 2836369. The next prime is 2836387. The reversal of 2836381 is 1836382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 84100 = 1659^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2836381 - 2⁹ = 2835869 is a prime.

It is a super-2 number, since 2×2836381² = 16090114354322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2836387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1418190 + 1418191.

It is an arithmetic number, because the mean of its divisors is an integer number (1418191).

2^2836381 is an apocalyptic number.

It is an amenable number.

2836381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2836381 is an equidigital number, since it uses as much as digits as its factorization.

2836381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 2836381 is about 1684.1558716461. The cubic root of 2836381 is about 141.5537967562.

Subtracting from 2836381 its reverse (1836382), we obtain a palindrome (999999).

The spelling of 2836381 in words is "two million, eight hundred thirty-six thousand, three hundred eighty-one".