99616613 has 2 divisors, whose sum is σ = 99616614. Its totient is φ = 99616612.

The previous prime is 99616589. The next prime is 99616631. The reversal of 99616613 is 31661699.

99616613 = 7057² + 7058².

Together with next prime (99616631) 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., 49815364 + 49801249 = 7058^2 + 7057^2 .

It is a cyclic number.

It is not a de Polignac number, because 99616613 - 2⁸ = 99616357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99616313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49808306 + 49808307.

It is an arithmetic number, because the mean of its divisors is an integer number (49808307).

Almost surely, 2^99616613 is an apocalyptic number.

99616613 is the 7058-th centered square number.

It is an amenable number.

99616613 is a deficient number, since it is larger than the sum of its proper divisors (1).

99616613 is an equidigital number, since it uses as much as digits as its factorization.

99616613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 99616613 is about 9980.8122414962. The cubic root of 99616613 is about 463.5649487513.

The spelling of 99616613 in words is "ninety-nine million, six hundred sixteen thousand, six hundred thirteen".