4782409 has 2 divisors, whose sum is σ = 4782410. Its totient is φ = 4782408.

The previous prime is 4782397. The next prime is 4782431. The reversal of 4782409 is 9042874.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4644025 + 138384 = 2155^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 4782409 - 2¹¹ = 4780361 is a prime.

It is not a weakly prime, because it can be changed into another prime (4782469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2391204 + 2391205.

It is an arithmetic number, because the mean of its divisors is an integer number (2391205).

Almost surely, 2^4782409 is an apocalyptic number.

It is an amenable number.

4782409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4782409 is an equidigital number, since it uses as much as digits as its factorization.

4782409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4782409 is about 2186.8719669885. The cubic root of 4782409 is about 168.4802138155.

The spelling of 4782409 in words is "four million, seven hundred eighty-two thousand, four hundred nine".