2837281 has 2 divisors, whose sum is σ = 2837282. Its totient is φ = 2837280.

The previous prime is 2837279. The next prime is 2837287. The reversal of 2837281 is 1827382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2692881 + 144400 = 1641^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2837281 - 2¹ = 2837279 is a prime.

It is a super-2 number, since 2×2837281² = 16100326945922, which contains 22 as substring.

Together with 2837279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2837287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1418640 + 1418641.

It is an arithmetic number, because the mean of its divisors is an integer number (1418641).

2^2837281 is an apocalyptic number.

It is an amenable number.

2837281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2837281 is an equidigital number, since it uses as much as digits as its factorization.

2837281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 2837281 is about 1684.4230466246. The cubic root of 2837281 is about 141.5687671174.

The spelling of 2837281 in words is "two million, eight hundred thirty-seven thousand, two hundred eighty-one".