2281687 has 2 divisors, whose sum is σ = 2281688. Its totient is φ = 2281686.

The previous prime is 2281673. The next prime is 2281711. The reversal of 2281687 is 7861822.

2281687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2281687 - 2¹⁵ = 2248919 is a prime.

2281687 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2281607) 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, 1140843 + 1140844.

It is an arithmetic number, because the mean of its divisors is an integer number (1140844).

2^2281687 is an apocalyptic number.

2281687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281687 is an equidigital number, since it uses as much as digits as its factorization.

2281687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 34.

The square root of 2281687 is about 1510.5254052812. The cubic root of 2281687 is about 131.6493409523.

The spelling of 2281687 in words is "two million, two hundred eighty-one thousand, six hundred eighty-seven".