4505643 has 24 divisors (see below), whose sum is σ = 6867120. Its totient is φ = 2842560.

The previous prime is 4505623. The next prime is 4505647. The reversal of 4505643 is 3465054.

It is not a de Polignac number, because 4505643 - 2⁹ = 4505131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4505647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15780 + ... + 16062.

It is an arithmetic number, because the mean of its divisors is an integer number (286130).

Almost surely, 2^4505643 is an apocalyptic number.

4505643 is a deficient number, since it is larger than the sum of its proper divisors (2361477).

4505643 is a wasteful number, since it uses less digits than its factorization.

4505643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 4505643 is about 2122.6499947000. The cubic root of 4505643 is about 165.1653438980.

The spelling of 4505643 in words is "four million, five hundred five thousand, six hundred forty-three".