4781305 has 4 divisors (see below), whose sum is σ = 5737572. Its totient is φ = 3825040.

The previous prime is 4781243. The next prime is 4781323. The reversal of 4781305 is 5031874.

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 1948816 + 2832489 = 1396^2 + 1683^2 .

It is not a de Polignac number, because 4781305 - 2¹⁹ = 4257017 is a prime.

It is a Duffinian number.

4781305 is a lucky number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478126 + ... + 478135.

It is an arithmetic number, because the mean of its divisors is an integer number (1434393).

Almost surely, 2^4781305 is an apocalyptic number.

It is an amenable number.

4781305 is a deficient number, since it is larger than the sum of its proper divisors (956267).

4781305 is an equidigital number, since it uses as much as digits as its factorization.

4781305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956266.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 4781305 is about 2186.6195370937. The cubic root of 4781305 is about 168.4672484898.

The spelling of 4781305 in words is "four million, seven hundred eighty-one thousand, three hundred five".