4705509 has 4 divisors (see below), whose sum is σ = 6274016. Its totient is φ = 3137004.

The previous prime is 4705471. The next prime is 4705537. The reversal of 4705509 is 9055074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4705509 - 2⁷ = 4705381 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4705579) 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 in 3 ways as a sum of consecutive naturals, for example, 784249 + ... + 784254.

It is an arithmetic number, because the mean of its divisors is an integer number (1568504).

Almost surely, 2^4705509 is an apocalyptic number.

It is an amenable number.

4705509 is a deficient number, since it is larger than the sum of its proper divisors (1568507).

4705509 is a wasteful number, since it uses less digits than its factorization.

4705509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568506.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 4705509 is about 2169.2185228787. The cubic root of 4705509 is about 167.5722892842.

The spelling of 4705509 in words is "four million, seven hundred five thousand, five hundred nine".