4902509 has 4 divisors (see below), whose sum is σ = 4982940. Its totient is φ = 4822080.

The previous prime is 4902497. The next prime is 4902529. The reversal of 4902509 is 9052094.

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 990025 + 3912484 = 995^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 4902509 - 2⁸ = 4902253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4902529) 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, 40124 + ... + 40245.

It is an arithmetic number, because the mean of its divisors is an integer number (1245735).

Almost surely, 2^4902509 is an apocalyptic number.

It is an amenable number.

4902509 is a deficient number, since it is larger than the sum of its proper divisors (80431).

4902509 is an equidigital number, since it uses as much as digits as its factorization.

4902509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80430.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 4902509 is about 2214.1610149219. The cubic root of 4902509 is about 169.8789103090.

The spelling of 4902509 in words is "four million, nine hundred two thousand, five hundred nine".