2681617 has 2 divisors, whose sum is σ = 2681618. Its totient is φ = 2681616.

The previous prime is 2681611. The next prime is 2681663. The reversal of 2681617 is 7161862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1679616 + 1002001 = 1296^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681617 - 2¹⁹ = 2157329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2681611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340808 + 1340809.

It is an arithmetic number, because the mean of its divisors is an integer number (1340809).

2^2681617 is an apocalyptic number.

It is an amenable number.

2681617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681617 is an equidigital number, since it uses as much as digits as its factorization.

2681617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 2681617 is about 1637.5643498806. The cubic root of 2681617 is about 138.9309216307.

The spelling of 2681617 in words is "two million, six hundred eighty-one thousand, six hundred seventeen".