99653309 has 24 divisors (see below), whose sum is σ = 126266400. Its totient is φ = 78109920.

The previous prime is 99653299. The next prime is 99653311. The reversal of 99653309 is 90335699.

It is not a de Polignac number, because 99653309 - 2¹² = 99649213 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99653309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99653339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25154 + ... + 28844.

It is an arithmetic number, because the mean of its divisors is an integer number (5261100).

Almost surely, 2^99653309 is an apocalyptic number.

It is an amenable number.

99653309 is a deficient number, since it is larger than the sum of its proper divisors (26613091).

99653309 is a wasteful number, since it uses less digits than its factorization.

99653309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 99653309 is about 9982.6503995682. The cubic root of 99653309 is about 463.6218632574.

The spelling of 99653309 in words is "ninety-nine million, six hundred fifty-three thousand, three hundred nine".