443896985 has 16 divisors (see below), whose sum is σ = 609120000. Its totient is φ = 304213056.

The previous prime is 443896969. The next prime is 443896991. The reversal of 443896985 is 589698344.

It is a happy number.

It is not a de Polignac number, because 443896985 - 2⁴ = 443896969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 443896985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102851 + ... + 107079.

It is an arithmetic number, because the mean of its divisors is an integer number (38070000).

Almost surely, 2^443896985 is an apocalyptic number.

It is an amenable number.

443896985 is a deficient number, since it is larger than the sum of its proper divisors (165223015).

443896985 is a wasteful number, since it uses less digits than its factorization.

443896985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7240.

The product of its digits is 7464960, while the sum is 56.

The square root of 443896985 is about 21068.8629261287. The cubic root of 443896985 is about 762.8293573125.

The spelling of 443896985 in words is "four hundred forty-three million, eight hundred ninety-six thousand, nine hundred eighty-five".