9728503 has 2 divisors, whose sum is σ = 9728504. Its totient is φ = 9728502.

The previous prime is 9728497. The next prime is 9728519. The reversal of 9728503 is 3058279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9728503 - 2¹⁷ = 9597431 is a prime.

9728503 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9728533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864251 + 4864252.

It is an arithmetic number, because the mean of its divisors is an integer number (4864252).

Almost surely, 2^9728503 is an apocalyptic number.

9728503 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728503 is an equidigital number, since it uses as much as digits as its factorization.

9728503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 9728503 is about 3119.0548247827. The cubic root of 9728503 is about 213.4758111272.

The spelling of 9728503 in words is "nine million, seven hundred twenty-eight thousand, five hundred three".