99659653 has 2 divisors, whose sum is σ = 99659654. Its totient is φ = 99659652.

The previous prime is 99659563. The next prime is 99659657. The reversal of 99659653 is 35695699.

Together with previous prime (99659563) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85507009 + 14152644 = 9247^2 + 3762^2 .

It is a cyclic number.

It is not a de Polignac number, because 99659653 - 2²¹ = 97562501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99659653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99659657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49829826 + 49829827.

It is an arithmetic number, because the mean of its divisors is an integer number (49829827).

Almost surely, 2^99659653 is an apocalyptic number.

It is an amenable number.

99659653 is a deficient number, since it is larger than the sum of its proper divisors (1).

99659653 is an equidigital number, since it uses as much as digits as its factorization.

99659653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1968300, while the sum is 52.

The square root of 99659653 is about 9982.9681457971. The cubic root of 99659653 is about 463.6317012137.

The spelling of 99659653 in words is "ninety-nine million, six hundred fifty-nine thousand, six hundred fifty-three".