2587217 has 2 divisors, whose sum is σ = 2587218. Its totient is φ = 2587216.

The previous prime is 2587187. The next prime is 2587253. The reversal of 2587217 is 7127852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1948816 + 638401 = 1396^2 + 799^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587217 - 2¹⁶ = 2521681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2589217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293608 + 1293609.

It is an arithmetic number, because the mean of its divisors is an integer number (1293609).

2^2587217 is an apocalyptic number.

It is an amenable number.

2587217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587217 is an equidigital number, since it uses as much as digits as its factorization.

2587217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 32.

The square root of 2587217 is about 1608.4828255222. The cubic root of 2587217 is about 137.2811637446.

The spelling of 2587217 in words is "two million, five hundred eighty-seven thousand, two hundred seventeen".