99959641 has 2 divisors, whose sum is σ = 99959642. Its totient is φ = 99959640.

The previous prime is 99959621. The next prime is 99959653. The reversal of 99959641 is 14695999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61779600 + 38180041 = 7860^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 99959641 - 2⁹ = 99959129 is a prime.

It is not a weakly prime, because it can be changed into another prime (99959621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49979820 + 49979821.

It is an arithmetic number, because the mean of its divisors is an integer number (49979821).

Almost surely, 2^99959641 is an apocalyptic number.

It is an amenable number.

99959641 is a deficient number, since it is larger than the sum of its proper divisors (1).

99959641 is an equidigital number, since it uses as much as digits as its factorization.

99959641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 52.

The square root of 99959641 is about 9997.9818463528. The cubic root of 99959641 is about 464.0964316643.

The spelling of 99959641 in words is "ninety-nine million, nine hundred fifty-nine thousand, six hundred forty-one".