4643845 has 4 divisors (see below), whose sum is σ = 5572620. Its totient is φ = 3715072.

The previous prime is 4643843. The next prime is 4643867. The reversal of 4643845 is 5483464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2411809 + 2232036 = 1553^2 + 1494^2 .

It is a cyclic number.

It is not a de Polignac number, because 4643845 - 2¹ = 4643843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4643845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464380 + ... + 464389.

It is an arithmetic number, because the mean of its divisors is an integer number (1393155).

Almost surely, 2^4643845 is an apocalyptic number.

It is an amenable number.

4643845 is a deficient number, since it is larger than the sum of its proper divisors (928775).

4643845 is an equidigital number, since it uses as much as digits as its factorization.

4643845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928774.

The product of its digits is 46080, while the sum is 34.

The square root of 4643845 is about 2154.9582362542. The cubic root of 4643845 is about 166.8370768140.

The spelling of 4643845 in words is "four million, six hundred forty-three thousand, eight hundred forty-five".