99909633 has 8 divisors (see below), whose sum is σ = 133261696. Its totient is φ = 66582000.

The previous prime is 99909613. The next prime is 99909659. The reversal of 99909633 is 33690999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99909633 - 2⁶ = 99909569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99909613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8283 + ... + 16383.

It is an arithmetic number, because the mean of its divisors is an integer number (16657712).

It is a Proth number, since it is equal to 3049 ⋅ 2¹⁵ + 1 and 3049 < 2¹⁵.

Almost surely, 2^99909633 is an apocalyptic number.

It is an amenable number.

99909633 is a deficient number, since it is larger than the sum of its proper divisors (33352063).

99909633 is a wasteful number, since it uses less digits than its factorization.

99909633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215.

The product of its (nonzero) digits is 354294, while the sum is 48.

The square root of 99909633 is about 9995.4806287642. The cubic root of 99909633 is about 464.0190257384.

The spelling of 99909633 in words is "ninety-nine million, nine hundred nine thousand, six hundred thirty-three".