445963 has 4 divisors (see below), whose sum is σ = 509680. Its totient is φ = 382248.

The previous prime is 445943. The next prime is 445967. The reversal of 445963 is 369544.

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 445963 - 2⁵ = 445931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445967) 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, 31848 + ... + 31861.

It is an arithmetic number, because the mean of its divisors is an integer number (127420).

2⁴⁴⁵⁹⁶³ is an apocalyptic number.

445963 is a deficient number, since it is larger than the sum of its proper divisors (63717).

445963 is an equidigital number, since it uses as much as digits as its factorization.

445963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63716.

The product of its digits is 12960, while the sum is 31.

The square root of 445963 is about 667.8046121434. The cubic root of 445963 is about 76.4010996434.

The spelling of 445963 in words is "four hundred forty-five thousand, nine hundred sixty-three".