4473645 has 32 divisors (see below), whose sum is σ = 8225280. Its totient is φ = 2053440.

The previous prime is 4473631. The next prime is 4473647. The reversal of 4473645 is 5463744.

It is a happy number.

It is not a de Polignac number, because 4473645 - 2⁵ = 4473613 is a prime.

It is a super-3 number, since 3×4473645³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a d-powerful number, because it can be written as 4² + 4⁹ + 7⁵ + 3⁵ + 6 + 4¹¹ + 5³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2422 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (257040).

Almost surely, 2^4473645 is an apocalyptic number.

It is an amenable number.

4473645 is a deficient number, since it is larger than the sum of its proper divisors (3751635).

4473645 is a wasteful number, since it uses less digits than its factorization.

4473645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 40320, while the sum is 33.

The square root of 4473645 is about 2115.0992884496. The cubic root of 4473645 is about 164.7734263913.

Subtracting 4473645 from its reverse (5463744), we obtain a palindrome (990099).

The spelling of 4473645 in words is "four million, four hundred seventy-three thousand, six hundred forty-five".