2782523 has 2 divisors, whose sum is σ = 2782524. Its totient is φ = 2782522.

The previous prime is 2782501. The next prime is 2782567. The reversal of 2782523 is 3252872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2782523 - 2¹⁸ = 2520379 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 7⁷ + 8⁴ + 2² + 5⁹ + 2¹⁰ + 3⁶ .

It is not a weakly prime, because it can be changed into another prime (2782123) 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, 1391261 + 1391262.

It is an arithmetic number, because the mean of its divisors is an integer number (1391262).

2^2782523 is an apocalyptic number.

2782523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782523 is an equidigital number, since it uses as much as digits as its factorization.

2782523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 2782523 is about 1668.0896258894. The cubic root of 2782523 is about 140.6521108553.

The spelling of 2782523 in words is "two million, seven hundred eighty-two thousand, five hundred twenty-three".