4744645 has 4 divisors (see below), whose sum is σ = 5693580. Its totient is φ = 3795712.

The previous prime is 4744639. The next prime is 4744657. The reversal of 4744645 is 5464474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5464474 = 2 ⋅2732237.

It can be written as a sum of positive squares in 2 ways, for example, as 1643524 + 3101121 = 1282^2 + 1761^2 .

It is a cyclic number.

It is not a de Polignac number, because 4744645 - 2¹⁷ = 4613573 is a prime.

4744645 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4744645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474460 + ... + 474469.

It is an arithmetic number, because the mean of its divisors is an integer number (1423395).

Almost surely, 2^4744645 is an apocalyptic number.

It is an amenable number.

4744645 is a deficient number, since it is larger than the sum of its proper divisors (948935).

4744645 is an equidigital number, since it uses as much as digits as its factorization.

4744645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948934.

The product of its digits is 53760, while the sum is 34.

The square root of 4744645 is about 2178.2206040711. The cubic root of 4744645 is about 168.0355768381.

The spelling of 4744645 in words is "four million, seven hundred forty-four thousand, six hundred forty-five".