2861317 has 2 divisors, whose sum is σ = 2861318. Its totient is φ = 2861316.

The previous prime is 2861303. The next prime is 2861347. The reversal of 2861317 is 7131682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2563201 + 298116 = 1601^2 + 546^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861317 - 2⁷ = 2861189 is a prime.

It is a Chen prime.

2861317 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2861347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430658 + 1430659.

It is an arithmetic number, because the mean of its divisors is an integer number (1430659).

2^2861317 is an apocalyptic number.

It is an amenable number.

2861317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861317 is an equidigital number, since it uses as much as digits as its factorization.

2861317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 2861317 is about 1691.5427869256. The cubic root of 2861317 is about 141.9674096999.

Adding to 2861317 its reverse (7131682), we get a palindrome (9992999).

The spelling of 2861317 in words is "two million, eight hundred sixty-one thousand, three hundred seventeen".