4287557 has 2 divisors, whose sum is σ = 4287558. Its totient is φ = 4287556.

The previous prime is 4287539. The next prime is 4287583. The reversal of 4287557 is 7557824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4056196 + 231361 = 2014^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 4287557 - 2¹⁴ = 4271173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4287557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4287457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2143778 + 2143779.

It is an arithmetic number, because the mean of its divisors is an integer number (2143779).

Almost surely, 2^4287557 is an apocalyptic number.

It is an amenable number.

4287557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4287557 is an equidigital number, since it uses as much as digits as its factorization.

4287557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 38.

The square root of 4287557 is about 2070.6416879798. The cubic root of 4287557 is about 162.4563290932.

The spelling of 4287557 in words is "four million, two hundred eighty-seven thousand, five hundred fifty-seven".