2985309 has 8 divisors (see below), whose sum is σ = 4422720. Its totient is φ = 1990188.

The previous prime is 2985293. The next prime is 2985317. The reversal of 2985309 is 9035892.

It is not a de Polignac number, because 2985309 - 2⁴ = 2985293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2985329) 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 in 7 ways as a sum of consecutive naturals, for example, 55257 + ... + 55310.

It is an arithmetic number, because the mean of its divisors is an integer number (552840).

2^2985309 is an apocalyptic number.

It is an amenable number.

2985309 is a deficient number, since it is larger than the sum of its proper divisors (1437411).

2985309 is a wasteful number, since it uses less digits than its factorization.

2985309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110576 (or 110570 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2985309 is about 1727.8046764609. The cubic root of 2985309 is about 143.9891484878.

The spelling of 2985309 in words is "two million, nine hundred eighty-five thousand, three hundred nine".