99735509 has 2 divisors, whose sum is σ = 99735510. Its totient is φ = 99735508.

The previous prime is 99735499. The next prime is 99735527. The reversal of 99735509 is 90553799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 32741284 = 8185^2 + 5722^2 .

It is a cyclic number.

It is not a de Polignac number, because 99735509 - 2¹² = 99731413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99735569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49867754 + 49867755.

It is an arithmetic number, because the mean of its divisors is an integer number (49867755).

Almost surely, 2^99735509 is an apocalyptic number.

It is an amenable number.

99735509 is a deficient number, since it is larger than the sum of its proper divisors (1).

99735509 is an equidigital number, since it uses as much as digits as its factorization.

99735509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 382725, while the sum is 47.

The square root of 99735509 is about 9986.7666939806. The cubic root of 99735509 is about 463.7493025566.

The spelling of 99735509 in words is "ninety-nine million, seven hundred thirty-five thousand, five hundred nine".