99519617 has 2 divisors, whose sum is σ = 99519618. Its totient is φ = 99519616.

The previous prime is 99519583. The next prime is 99519653. The reversal of 99519617 is 71691599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51854401 + 47665216 = 7201^2 + 6904^2 .

It is a cyclic number.

It is not a de Polignac number, because 99519617 - 2¹⁴ = 99503233 is a prime.

It is not a weakly prime, because it can be changed into another prime (99516617) 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, 49759808 + 49759809.

It is an arithmetic number, because the mean of its divisors is an integer number (49759809).

Almost surely, 2^99519617 is an apocalyptic number.

It is an amenable number.

99519617 is a deficient number, since it is larger than the sum of its proper divisors (1).

99519617 is an equidigital number, since it uses as much as digits as its factorization.

99519617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 47.

The square root of 99519617 is about 9975.9519345274. The cubic root of 99519617 is about 463.4144432415.

The spelling of 99519617 in words is "ninety-nine million, five hundred nineteen thousand, six hundred seventeen".