99695909 has 2 divisors, whose sum is σ = 99695910. Its totient is φ = 99695908.

The previous prime is 99695891. The next prime is 99695927. The reversal of 99695909 is 90959699.

It is a balanced prime because it is at equal distance from previous prime (99695891) and next prime (99695927).

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 18515809 = 9010^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 99695909 - 2⁸ = 99695653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99695929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49847954 + 49847955.

It is an arithmetic number, because the mean of its divisors is an integer number (49847955).

Almost surely, 2^99695909 is an apocalyptic number.

It is an amenable number.

99695909 is a deficient number, since it is larger than the sum of its proper divisors (1).

99695909 is an equidigital number, since it uses as much as digits as its factorization.

99695909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1771470, while the sum is 56.

The square root of 99695909 is about 9984.7838734747. The cubic root of 99695909 is about 463.6879171863.

The spelling of 99695909 in words is "ninety-nine million, six hundred ninety-five thousand, nine hundred nine".