9735521 has 2 divisors, whose sum is σ = 9735522. Its totient is φ = 9735520.

The previous prime is 9735497. The next prime is 9735541. The reversal of 9735521 is 1255379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9541921 + 193600 = 3089^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 9735521 - 2¹⁴ = 9719137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9735541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4867760 + 4867761.

It is an arithmetic number, because the mean of its divisors is an integer number (4867761).

Almost surely, 2^9735521 is an apocalyptic number.

It is an amenable number.

9735521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9735521 is an equidigital number, since it uses as much as digits as its factorization.

9735521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 9735521 is about 3120.1796422642. The cubic root of 9735521 is about 213.5271315662.

The spelling of 9735521 in words is "nine million, seven hundred thirty-five thousand, five hundred twenty-one".