99991353 has 32 divisors (see below), whose sum is σ = 170726400. Its totient is φ = 50535360.

The previous prime is 99991343. The next prime is 99991363. The reversal of 99991353 is 35319999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99991343) and next prime (99991363).

It is not a de Polignac number, because 99991353 - 2¹⁰ = 99990329 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99991303) 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 31 ways as a sum of consecutive naturals, for example, 2698 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^99991353 is an apocalyptic number.

It is an amenable number.

99991353 is a deficient number, since it is larger than the sum of its proper divisors (70735047).

99991353 is a wasteful number, since it uses less digits than its factorization.

99991353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11757.

The product of its digits is 295245, while the sum is 48.

The square root of 99991353 is about 9999.5676406533. The cubic root of 99991353 is about 464.1455043694.

The spelling of 99991353 in words is "ninety-nine million, nine hundred ninety-one thousand, three hundred fifty-three".