445471 has 4 divisors (see below), whose sum is σ = 479752. Its totient is φ = 411192.

The previous prime is 445463. The next prime is 445477. The reversal of 445471 is 174544.

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 445471 - 2³ = 445463 is a prime.

It is a super-3 number, since 3×445471³ = 265203691761666333, which contains 333 as substring.

It is a d-powerful number, because it can be written as 4² + 4⁸ + 4⁹ + 5³ + 7⁶ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445477) 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, 17121 + ... + 17146.

It is an arithmetic number, because the mean of its divisors is an integer number (119938).

2⁴⁴⁵⁴⁷¹ is an apocalyptic number.

445471 is a deficient number, since it is larger than the sum of its proper divisors (34281).

445471 is a wasteful number, since it uses less digits than its factorization.

445471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34280.

The product of its digits is 2240, while the sum is 25.

The square root of 445471 is about 667.4361392673. The cubic root of 445471 is about 76.3729932962.

The spelling of 445471 in words is "four hundred forty-five thousand, four hundred seventy-one".