2745287 has 2 divisors, whose sum is σ = 2745288. Its totient is φ = 2745286.

The previous prime is 2745283. The next prime is 2745307. The reversal of 2745287 is 7825472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2745287 - 2² = 2745283 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹¹ + 7² + 4⁶ + 5 + 2¹⁹ + 8⁷ + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745283) 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, 1372643 + 1372644.

It is an arithmetic number, because the mean of its divisors is an integer number (1372644).

2^2745287 is an apocalyptic number.

2745287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745287 is an equidigital number, since it uses as much as digits as its factorization.

2745287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 35.

The square root of 2745287 is about 1656.8907628447. The cubic root of 2745287 is about 140.0218843340.

The spelling of 2745287 in words is "two million, seven hundred forty-five thousand, two hundred eighty-seven".