445170447 has 12 divisors (see below), whose sum is σ = 663767104. Its totient is φ = 287206560.

The previous prime is 445170419. The next prime is 445170457. The reversal of 445170447 is 744071544.

It is a happy number.

445170447 is a `hidden beast` number, since 4 + 45 + 170 + 447 = 666.

It is not a de Polignac number, because 445170447 - 2²⁰ = 444121871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445170457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797518 + ... + 798075.

Almost surely, 2^445170447 is an apocalyptic number.

445170447 is a deficient number, since it is larger than the sum of its proper divisors (218596657).

445170447 is a wasteful number, since it uses less digits than its factorization.

445170447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595630 (or 1595627 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 445170447 is about 21099.0627043004. The cubic root of 445170447 is about 763.5581350484.

The spelling of 445170447 in words is "four hundred forty-five million, one hundred seventy thousand, four hundred forty-seven".