445317 has 4 divisors (see below), whose sum is σ = 593760. Its totient is φ = 296876.

The previous prime is 445307. The next prime is 445321. The reversal of 445317 is 713544.

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 445317 - 2¹⁰ = 444293 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445307) 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, 74217 + ... + 74222.

It is an arithmetic number, because the mean of its divisors is an integer number (148440).

2⁴⁴⁵³¹⁷ is an apocalyptic number.

It is an amenable number.

445317 is a deficient number, since it is larger than the sum of its proper divisors (148443).

445317 is a wasteful number, since it uses less digits than its factorization.

445317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148442.

The product of its digits is 1680, while the sum is 24.

The square root of 445317 is about 667.3207624524. The cubic root of 445317 is about 76.3641915286.

The spelling of 445317 in words is "four hundred forty-five thousand, three hundred seventeen".