4985309 has 6 divisors (see below), whose sum is σ = 5799294. Its totient is φ = 4273080.

The previous prime is 4985287. The next prime is 4985317. The reversal of 4985309 is 9035894.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 2393209 = 1610^2 + 1547^2 .

It is not a de Polignac number, because 4985309 - 2¹⁶ = 4919773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50822 + ... + 50919.

It is an arithmetic number, because the mean of its divisors is an integer number (966549).

Almost surely, 2^4985309 is an apocalyptic number.

4985309 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4985309 is a deficient number, since it is larger than the sum of its proper divisors (813985).

4985309 is a wasteful number, since it uses less digits than its factorization.

4985309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101755 (or 101748 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 4985309 is about 2232.7805534803. The cubic root of 4985309 is about 170.8299553301.

It can be divided in two parts, 49 and 85309, that added together give a palindrome (85358).

The spelling of 4985309 in words is "four million, nine hundred eighty-five thousand, three hundred nine".