4453609 has 4 divisors (see below), whose sum is σ = 4715604. Its totient is φ = 4191616.

The previous prime is 4453591. The next prime is 4453613. The reversal of 4453609 is 9063544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1373584 + 3080025 = 1172^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 4453609 - 2⁷ = 4453481 is a prime.

It is a Duffinian number.

4453609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4453409) 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 3 ways as a sum of consecutive naturals, for example, 130972 + ... + 131005.

It is an arithmetic number, because the mean of its divisors is an integer number (1178901).

Almost surely, 2^4453609 is an apocalyptic number.

It is an amenable number.

4453609 is a deficient number, since it is larger than the sum of its proper divisors (261995).

4453609 is a wasteful number, since it uses less digits than its factorization.

4453609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261994.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 4453609 is about 2110.3575526436. The cubic root of 4453609 is about 164.5270693898.

The spelling of 4453609 in words is "four million, four hundred fifty-three thousand, six hundred nine".