2215783 has 2 divisors, whose sum is σ = 2215784. Its totient is φ = 2215782.

The previous prime is 2215777. The next prime is 2215789. The reversal of 2215783 is 3875122.

It is a balanced prime because it is at equal distance from previous prime (2215777) and next prime (2215789).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2215783 is a prime.

2215783 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215789) 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, 1107891 + 1107892.

It is an arithmetic number, because the mean of its divisors is an integer number (1107892).

2^2215783 is an apocalyptic number.

2215783 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215783 is an equidigital number, since it uses as much as digits as its factorization.

2215783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 2215783 is about 1488.5506373651. The cubic root of 2215783 is about 130.3694225857.

The spelling of 2215783 in words is "two million, two hundred fifteen thousand, seven hundred eighty-three".