4375609 has 4 divisors (see below), whose sum is σ = 5000704. Its totient is φ = 3750516.

The previous prime is 4375603. The next prime is 4375621. The reversal of 4375609 is 9065734.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4375609 - 2⁵ = 4375577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4375603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312537 + ... + 312550.

It is an arithmetic number, because the mean of its divisors is an integer number (1250176).

Almost surely, 2^4375609 is an apocalyptic number.

It is an amenable number.

4375609 is a deficient number, since it is larger than the sum of its proper divisors (625095).

4375609 is an equidigital number, since it uses as much as digits as its factorization.

4375609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625094.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 4375609 is about 2091.7956401140. The cubic root of 4375609 is about 163.5609040312.

The spelling of 4375609 in words is "four million, three hundred seventy-five thousand, six hundred nine".