99999069 has 16 divisors (see below), whose sum is σ = 137253120. Its totient is φ = 64733760.

The previous prime is 99999043. The next prime is 99999073. The reversal of 99999069 is 96099999.

It is not a de Polignac number, because 99999069 - 2⁹ = 99998557 is a prime.

It is a super-2 number, since 2×99999069² = 19999627601733522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10999 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (8578320).

Almost surely, 2^99999069 is an apocalyptic number.

It is an amenable number.

99999069 is a deficient number, since it is larger than the sum of its proper divisors (37254051).

99999069 is a wasteful number, since it uses less digits than its factorization.

99999069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060.

The product of its (nonzero) digits is 3188646, while the sum is 60.

The square root of 99999069 is about 9999.9534498917. The cubic root of 99999069 is about 464.1574429171.

The spelling of 99999069 in words is "ninety-nine million, nine hundred ninety-nine thousand, sixty-nine".