4472509 has 2 divisors, whose sum is σ = 4472510. Its totient is φ = 4472508.

The previous prime is 4472497. The next prime is 4472527. The reversal of 4472509 is 9052744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2839225 + 1633284 = 1685^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 4472509 - 2⁵ = 4472477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4472539) by changing a digit.

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 as a sum of consecutive naturals, namely, 2236254 + 2236255.

It is an arithmetic number, because the mean of its divisors is an integer number (2236255).

Almost surely, 2^4472509 is an apocalyptic number.

It is an amenable number.

4472509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4472509 is an equidigital number, since it uses as much as digits as its factorization.

4472509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 4472509 is about 2114.8307260866. The cubic root of 4472509 is about 164.7594781486.

The spelling of 4472509 in words is "four million, four hundred seventy-two thousand, five hundred nine".