99706577 has 2 divisors, whose sum is σ = 99706578. Its totient is φ = 99706576.

The previous prime is 99706561. The next prime is 99706597. The reversal of 99706577 is 77560799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98227921 + 1478656 = 9911^2 + 1216^2 .

It is an emirp because it is prime and its reverse (77560799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99706577 - 2⁴ = 99706561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99706517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49853288 + 49853289.

It is an arithmetic number, because the mean of its divisors is an integer number (49853289).

Almost surely, 2^99706577 is an apocalyptic number.

It is an amenable number.

99706577 is a deficient number, since it is larger than the sum of its proper divisors (1).

99706577 is an equidigital number, since it uses as much as digits as its factorization.

99706577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 50.

The square root of 99706577 is about 9985.3180720496. The cubic root of 99706577 is about 463.7044556324.

The spelling of 99706577 in words is "ninety-nine million, seven hundred six thousand, five hundred seventy-seven".