801109 has 4 divisors (see below), whose sum is σ = 808704. Its totient is φ = 793516.

The previous prime is 801107. The next prime is 801127. The reversal of 801109 is 901108.

801109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 801109 - 2¹ = 801107 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801103) 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, 3637 + ... + 3850.

It is an arithmetic number, because the mean of its divisors is an integer number (202176).

2⁸⁰¹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

801109 is a deficient number, since it is larger than the sum of its proper divisors (7595).

801109 is a wasteful number, since it uses less digits than its factorization.

801109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 801109 is about 895.0469261441. The cubic root of 801109 is about 92.8746528828.

Subtracting 801109 from its reverse (901108), we obtain a palindrome (99999).

The spelling of 801109 in words is "eight hundred one thousand, one hundred nine".