900099091 has 8 divisors (see below), whose sum is σ = 924863984. Its totient is φ = 875508480.

The previous prime is 900099077. The next prime is 900099113. The reversal of 900099091 is 190990009.

900099091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 900099091 - 2⁵ = 900099059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 900099091.

It is not an unprimeable number, because it can be changed into a prime (900099041) 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, 33066 + ... + 53791.

It is an arithmetic number, because the mean of its divisors is an integer number (115607998).

Almost surely, 2^900099091 is an apocalyptic number.

900099091 is a deficient number, since it is larger than the sum of its proper divisors (24764893).

900099091 is a wasteful number, since it uses less digits than its factorization.

900099091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87141.

The product of its (nonzero) digits is 6561, while the sum is 37.

The square root of 900099091 is about 30001.6514712107. The cubic root of 900099091 is about 965.5248171233.

The spelling of 900099091 in words is "nine hundred million, ninety-nine thousand, ninety-one".