5640287 has 2 divisors, whose sum is σ = 5640288. Its totient is φ = 5640286.

The previous prime is 5640281. The next prime is 5640293. The reversal of 5640287 is 7820465.

It is a balanced prime because it is at equal distance from previous prime (5640281) and next prime (5640293).

It is a cyclic number.

It is not a de Polignac number, because 5640287 - 2⁸ = 5640031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5640281) 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, 2820143 + 2820144.

It is an arithmetic number, because the mean of its divisors is an integer number (2820144).

Almost surely, 2^5640287 is an apocalyptic number.

5640287 is a deficient number, since it is larger than the sum of its proper divisors (1).

5640287 is an equidigital number, since it uses as much as digits as its factorization.

5640287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 5640287 is about 2374.9288410392. The cubic root of 5640287 is about 178.0056283201.

The spelling of 5640287 in words is "five million, six hundred forty thousand, two hundred eighty-seven".