445973 has 4 divisors (see below), whose sum is σ = 486528. Its totient is φ = 405420.

The previous prime is 445969. The next prime is 446003. The reversal of 445973 is 379544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445973 - 2² = 445969 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445973.

It is not an unprimeable number, because it can be changed into a prime (445943) 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, 20261 + ... + 20282.

It is an arithmetic number, because the mean of its divisors is an integer number (121632).

2⁴⁴⁵⁹⁷³ is an apocalyptic number.

It is an amenable number.

445973 is a deficient number, since it is larger than the sum of its proper divisors (40555).

445973 is a wasteful number, since it uses less digits than its factorization.

445973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40554.

The product of its digits is 15120, while the sum is 32.

The square root of 445973 is about 667.8120993214. The cubic root of 445973 is about 76.4016706962.

The spelling of 445973 in words is "four hundred forty-five thousand, nine hundred seventy-three".