4644865 has 8 divisors (see below), whose sum is σ = 5623848. Its totient is φ = 3682560.

The previous prime is 4644853. The next prime is 4644881. The reversal of 4644865 is 5684464.

It can be written as a sum of positive squares in 4 ways, for example, as 322624 + 4322241 = 568^2 + 2079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4644865 - 2⁵ = 4644833 is a prime.

It is a Duffinian number.

4644865 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (702981).

It is a Proth number, since it is equal to 567 ⋅ 2¹³ + 1 and 567 < 2¹³.

Almost surely, 2^4644865 is an apocalyptic number.

It is an amenable number.

4644865 is a deficient number, since it is larger than the sum of its proper divisors (978983).

4644865 is a wasteful number, since it uses less digits than its factorization.

4644865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339.

The product of its digits is 92160, while the sum is 37.

The square root of 4644865 is about 2155.1948867794. The cubic root of 4644865 is about 166.8492909283.

It can be divided in two parts, 464 and 4865, that added together give a square (5329 = 73²).

The spelling of 4644865 in words is "four million, six hundred forty-four thousand, eight hundred sixty-five".