445855 has 8 divisors (see below), whose sum is σ = 558432. Its totient is φ = 341088.

The previous prime is 445853. The next prime is 445871. The reversal of 445855 is 558544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445855 - 2¹ = 445853 is a prime.

It is a Duffinian number.

445855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445853) 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 7 ways as a sum of consecutive naturals, for example, 1824 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (69804).

2⁴⁴⁵⁸⁵⁵ is an apocalyptic number.

445855 is a deficient number, since it is larger than the sum of its proper divisors (112577).

445855 is a wasteful number, since it uses less digits than its factorization.

445855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its digits is 16000, while the sum is 31.

The square root of 445855 is about 667.7237452720. The cubic root of 445855 is about 76.3949317289.

The spelling of 445855 in words is "four hundred forty-five thousand, eight hundred fifty-five".