4985609 has 2 divisors, whose sum is σ = 4985610. Its totient is φ = 4985608.

The previous prime is 4985599. The next prime is 4985623. The reversal of 4985609 is 9065894.

4985609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 1763584 = 1795^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 4985609 - 2¹² = 4981513 is a prime.

It is not a weakly prime, because it can be changed into another prime (4985209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492804 + 2492805.

It is an arithmetic number, because the mean of its divisors is an integer number (2492805).

Almost surely, 2^4985609 is an apocalyptic number.

It is an amenable number.

4985609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4985609 is an equidigital number, since it uses as much as digits as its factorization.

4985609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 4985609 is about 2232.8477332769. The cubic root of 4985609 is about 170.8333819287.

It can be divided in two parts, 49 and 85609, that added together give a palindrome (85658).

The spelling of 4985609 in words is "four million, nine hundred eighty-five thousand, six hundred nine".