4988209 has 2 divisors, whose sum is σ = 4988210. Its totient is φ = 4988208.

The previous prime is 4988197. The next prime is 4988219. The reversal of 4988209 is 9028894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2985984 + 2002225 = 1728^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 4988209 - 2⁵ = 4988177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4988219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494104 + 2494105.

It is an arithmetic number, because the mean of its divisors is an integer number (2494105).

Almost surely, 2^4988209 is an apocalyptic number.

It is an amenable number.

4988209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4988209 is an equidigital number, since it uses as much as digits as its factorization.

4988209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 4988209 is about 2233.4298735353. The cubic root of 4988209 is about 170.8630733602.

It can be divided in two parts, 49 and 88209, that multiplied together give a square (4322241 = 2079²).

The spelling of 4988209 in words is "four million, nine hundred eighty-eight thousand, two hundred nine".