4720305 has 32 divisors (see below), whose sum is σ = 8118144. Its totient is φ = 2333696.

The previous prime is 4720297. The next prime is 4720307. The reversal of 4720305 is 5030274.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4720305 - 2³ = 4720297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27199 + ... + 27371.

It is an arithmetic number, because the mean of its divisors is an integer number (253692).

Almost surely, 2^4720305 is an apocalyptic number.

It is an amenable number.

4720305 is a deficient number, since it is larger than the sum of its proper divisors (3397839).

4720305 is a wasteful number, since it uses less digits than its factorization.

4720305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 4720305 is about 2172.6262909207. The cubic root of 4720305 is about 167.7477435855.

Adding to 4720305 its reverse (5030274), we get a palindrome (9750579).

The spelling of 4720305 in words is "four million, seven hundred twenty thousand, three hundred five".