4747509 has 12 divisors (see below), whose sum is σ = 7385196. Its totient is φ = 2921472.

The previous prime is 4747493. The next prime is 4747531. The reversal of 4747509 is 9057474.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 2965284 = 1335^2 + 1722^2 .

It is not a de Polignac number, because 4747509 - 2⁴ = 4747493 is a prime.

It is a super-3 number, since 3×4747509³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4747559) 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 in 11 ways as a sum of consecutive naturals, for example, 20172 + ... + 20405.

It is an arithmetic number, because the mean of its divisors is an integer number (615433).

Almost surely, 2^4747509 is an apocalyptic number.

It is an amenable number.

4747509 is a deficient number, since it is larger than the sum of its proper divisors (2637687).

4747509 is a wasteful number, since it uses less digits than its factorization.

4747509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40596 (or 40593 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 4747509 is about 2178.8779222343. The cubic root of 4747509 is about 168.0693803571.

The spelling of 4747509 in words is "four million, seven hundred forty-seven thousand, five hundred nine".