99665769 has 16 divisors (see below), whose sum is σ = 152192000. Its totient is φ = 56831760.

The previous prime is 99665723. The next prime is 99665777. The reversal of 99665769 is 96756699.

It is not a de Polignac number, because 99665769 - 2¹⁹ = 99141481 is a prime.

It is a super-2 number, since 2×99665769² = 19866531020722722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99665569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5724 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (9512000).

Almost surely, 2^99665769 is an apocalyptic number.

It is an amenable number.

99665769 is a deficient number, since it is larger than the sum of its proper divisors (52526231).

99665769 is a wasteful number, since it uses less digits than its factorization.

99665769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020.

The product of its digits is 5511240, while the sum is 57.

The square root of 99665769 is about 9983.2744628203. The cubic root of 99665769 is about 463.6411852038.

The spelling of 99665769 in words is "ninety-nine million, six hundred sixty-five thousand, seven hundred sixty-nine".