445867 has 4 divisors (see below), whose sum is σ = 456280. Its totient is φ = 435456.

The previous prime is 445853. The next prime is 445871. The reversal of 445867 is 768544.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445807) 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, 5142 + ... + 5227.

It is an arithmetic number, because the mean of its divisors is an integer number (114070).

2⁴⁴⁵⁸⁶⁷ is an apocalyptic number.

445867 is a deficient number, since it is larger than the sum of its proper divisors (10413).

445867 is a wasteful number, since it uses less digits than its factorization.

445867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10412.

The product of its digits is 26880, while the sum is 34.

The square root of 445867 is about 667.7327309635. The cubic root of 445867 is about 76.3956171019.

The spelling of 445867 in words is "four hundred forty-five thousand, eight hundred sixty-seven".