443494729 has 4 divisors (see below), whose sum is σ = 444894084. Its totient is φ = 442095376.

The previous prime is 443494721. The next prime is 443494739. The reversal of 443494729 is 927494344.

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 30470400 + 413024329 = 5520^2 + 20323^2 .

It is a cyclic number.

It is not a de Polignac number, because 443494729 - 2³ = 443494721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443494721) 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, 699202 + ... + 699835.

It is an arithmetic number, because the mean of its divisors is an integer number (111223521).

Almost surely, 2^443494729 is an apocalyptic number.

It is an amenable number.

443494729 is a deficient number, since it is larger than the sum of its proper divisors (1399355).

443494729 is a wasteful number, since it uses less digits than its factorization.

443494729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399354.

The product of its digits is 870912, while the sum is 46.

The square root of 443494729 is about 21059.3145425011. The cubic root of 443494729 is about 762.5988643286.

The spelling of 443494729 in words is "four hundred forty-three million, four hundred ninety-four thousand, seven hundred twenty-nine".