4780289 has 4 divisors (see below), whose sum is σ = 4909524. Its totient is φ = 4651056.

The previous prime is 4780283. The next prime is 4780291. The reversal of 4780289 is 9820874.

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 4032064 + 748225 = 2008^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 4780289 - 2⁸ = 4780033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4780283) 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, 64562 + ... + 64635.

It is an arithmetic number, because the mean of its divisors is an integer number (1227381).

Almost surely, 2^4780289 is an apocalyptic number.

It is an amenable number.

4780289 is a deficient number, since it is larger than the sum of its proper divisors (129235).

4780289 is a wasteful number, since it uses less digits than its factorization.

4780289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129234.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 4780289 is about 2186.3872026702. The cubic root of 4780289 is about 168.4553148685.

The spelling of 4780289 in words is "four million, seven hundred eighty thousand, two hundred eighty-nine".