2086817 has 2 divisors, whose sum is σ = 2086818. Its totient is φ = 2086816.

The previous prime is 2086793. The next prime is 2086823. The reversal of 2086817 is 7186802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2085136 + 1681 = 1444^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086817 - 2¹⁴ = 2070433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2088817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043408 + 1043409.

It is an arithmetic number, because the mean of its divisors is an integer number (1043409).

2^2086817 is an apocalyptic number.

It is an amenable number.

2086817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086817 is an equidigital number, since it uses as much as digits as its factorization.

2086817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2086817 is about 1444.5819464468. The cubic root of 2086817 is about 127.7893875329.

The spelling of 2086817 in words is "two million, eighty-six thousand, eight hundred seventeen".