443364609 has 4 divisors (see below), whose sum is σ = 591152816. Its totient is φ = 295576404.

The previous prime is 443364553. The next prime is 443364613. The reversal of 443364609 is 906463344.

It is a happy number.

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 443364609 - 2²³ = 434976001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (443364659) 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, 73894099 + ... + 73894104.

It is an arithmetic number, because the mean of its divisors is an integer number (147788204).

Almost surely, 2^443364609 is an apocalyptic number.

It is an amenable number.

443364609 is a deficient number, since it is larger than the sum of its proper divisors (147788207).

443364609 is a wasteful number, since it uses less digits than its factorization.

443364609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147788206.

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 443364609 is about 21056.2249465568. The cubic root of 443364609 is about 762.5242756403.

The spelling of 443364609 in words is "four hundred forty-three million, three hundred sixty-four thousand, six hundred nine".