445843 has 4 divisors (see below), whose sum is σ = 448168. Its totient is φ = 443520.

The previous prime is 445829. The next prime is 445847. The reversal of 445843 is 348544.

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 445843 - 2¹³ = 437651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (112042).

2⁴⁴⁵⁸⁴³ is an apocalyptic number.

445843 is a deficient number, since it is larger than the sum of its proper divisors (2325).

445843 is a wasteful number, since it uses less digits than its factorization.

445843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its digits is 7680, while the sum is 28.

The square root of 445843 is about 667.7147594595. The cubic root of 445843 is about 76.3942463436.

The spelling of 445843 in words is "four hundred forty-five thousand, eight hundred forty-three".