99335921 has 4 divisors (see below), whose sum is σ = 99413232. Its totient is φ = 99258612.

The previous prime is 99335917. The next prime is 99335923. The reversal of 99335921 is 12953399.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99335921 - 2² = 99335917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99335923) 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 3 ways as a sum of consecutive naturals, for example, 36695 + ... + 39308.

It is an arithmetic number, because the mean of its divisors is an integer number (24853308).

Almost surely, 2^99335921 is an apocalyptic number.

It is an amenable number.

99335921 is a deficient number, since it is larger than the sum of its proper divisors (77311).

99335921 is a wasteful number, since it uses less digits than its factorization.

99335921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77310.

The product of its digits is 65610, while the sum is 41.

The square root of 99335921 is about 9966.7407410848. The cubic root of 99335921 is about 463.1291399927.

The spelling of 99335921 in words is "ninety-nine million, three hundred thirty-five thousand, nine hundred twenty-one".