445986799 has 4 divisors (see below), whose sum is σ = 453298120. Its totient is φ = 438675480.

The previous prime is 445986781. The next prime is 445986833. The reversal of 445986799 is 997689544.

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

It is a cyclic number.

It is not a de Polignac number, because 445986799 - 2¹¹ = 445984751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 7311259 = 445986799 / (4 + 4 + 5 + 9 + 8 + 6 + 7 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445986899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655569 + ... + 3655690.

It is an arithmetic number, because the mean of its divisors is an integer number (113324530).

Almost surely, 2^445986799 is an apocalyptic number.

445986799 is a deficient number, since it is larger than the sum of its proper divisors (7311321).

445986799 is an equidigital number, since it uses as much as digits as its factorization.

445986799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311320.

The product of its digits is 19595520, while the sum is 61.

The square root of 445986799 is about 21118.3995368967. The cubic root of 445986799 is about 764.0245867794.

The spelling of 445986799 in words is "four hundred forty-five million, nine hundred eighty-six thousand, seven hundred ninety-nine".