445684 has 12 divisors (see below), whose sum is σ = 792064. Its totient is φ = 219384.

The previous prime is 445657. The next prime is 445691. The reversal of 445684 is 486544.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 564 + ... + 1099.

2⁴⁴⁵⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

445684 is a deficient number, since it is larger than the sum of its proper divisors (346380).

445684 is a wasteful number, since it uses less digits than its factorization.

445684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1732 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 445684 is about 667.5956860256. The cubic root of 445684 is about 76.3851638269.

The spelling of 445684 in words is "four hundred forty-five thousand, six hundred eighty-four".