99010091 has 8 divisors (see below), whose sum is σ = 105423120. Its totient is φ = 92662528.

The previous prime is 99010073. The next prime is 99010099. The reversal of 99010091 is 19001099.

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

It is a cyclic number.

It is not a de Polignac number, because 99010091 - 2⁶ = 99010027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99010099) 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, 13226 + ... + 19311.

It is an arithmetic number, because the mean of its divisors is an integer number (13177890).

Almost surely, 2^99010091 is an apocalyptic number.

99010091 is a deficient number, since it is larger than the sum of its proper divisors (6413029).

99010091 is a wasteful number, since it uses less digits than its factorization.

99010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32733.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 99010091 is about 9950.3814499747. The cubic root of 99010091 is about 462.6222181021.

The spelling of 99010091 in words is "ninety-nine million, ten thousand, ninety-one".