2985817 has 2 divisors, whose sum is σ = 2985818. Its totient is φ = 2985816.

The previous prime is 2985809. The next prime is 2985847. The reversal of 2985817 is 7185892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2893401 + 92416 = 1701^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2985817 - 2³ = 2985809 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2985817.

It is not a weakly prime, because it can be changed into another prime (2985847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1492908 + 1492909.

It is an arithmetic number, because the mean of its divisors is an integer number (1492909).

2^2985817 is an apocalyptic number.

It is an amenable number.

2985817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2985817 is an equidigital number, since it uses as much as digits as its factorization.

2985817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 2985817 is about 1727.9516775651. The cubic root of 2985817 is about 143.9973154078.

The spelling of 2985817 in words is "two million, nine hundred eighty-five thousand, eight hundred seventeen".