801091099 has 4 divisors (see below), whose sum is σ = 828714960. Its totient is φ = 773467240.

The previous prime is 801091097. The next prime is 801091103. The reversal of 801091099 is 990190108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801091099 - 2¹ = 801091097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801091097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13811887 + ... + 13811944.

It is an arithmetic number, because the mean of its divisors is an integer number (207178740).

Almost surely, 2^801091099 is an apocalyptic number.

801091099 is a deficient number, since it is larger than the sum of its proper divisors (27623861).

801091099 is a wasteful number, since it uses less digits than its factorization.

801091099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27623860.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 801091099 is about 28303.5527628600. The cubic root of 801091099 is about 928.7396110777.

The spelling of 801091099 in words is "eight hundred one million, ninety-one thousand, ninety-nine".