9729541 has 2 divisors, whose sum is σ = 9729542. Its totient is φ = 9729540.

The previous prime is 9729497. The next prime is 9729553. The reversal of 9729541 is 1459279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8678916 + 1050625 = 2946^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 9729541 - 2¹¹ = 9727493 is a prime.

It is a Chen prime.

9729541 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9729541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9729571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864770 + 4864771.

It is an arithmetic number, because the mean of its divisors is an integer number (4864771).

Almost surely, 2^9729541 is an apocalyptic number.

It is an amenable number.

9729541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9729541 is an equidigital number, since it uses as much as digits as its factorization.

9729541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 9729541 is about 3119.2212169066. The cubic root of 9729541 is about 213.4834032515.

It can be divided in two parts, 97295 and 41, that added together give a cube (97336 = 46³).

The spelling of 9729541 in words is "nine million, seven hundred twenty-nine thousand, five hundred forty-one".