99435689 has 2 divisors, whose sum is σ = 99435690. Its totient is φ = 99435688.

The previous prime is 99435659. The next prime is 99435727. The reversal of 99435689 is 98653499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 3003289 = 9820^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 99435689 - 2⁸ = 99435433 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99435689.

It is not a weakly prime, because it can be changed into another prime (99435659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49717844 + 49717845.

It is an arithmetic number, because the mean of its divisors is an integer number (49717845).

Almost surely, 2^99435689 is an apocalyptic number.

It is an amenable number.

99435689 is a deficient number, since it is larger than the sum of its proper divisors (1).

99435689 is an equidigital number, since it uses as much as digits as its factorization.

99435689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 53.

The square root of 99435689 is about 9971.7445314248. The cubic root of 99435689 is about 463.2841359814.

The spelling of 99435689 in words is "ninety-nine million, four hundred thirty-five thousand, six hundred eighty-nine".