801089 has 4 divisors (see below), whose sum is σ = 810180. Its totient is φ = 792000.

The previous prime is 801079. The next prime is 801103. The reversal of 801089 is 980108.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148225 + 652864 = 385^2 + 808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801019) 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, 4412 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (202545).

2⁸⁰¹⁰⁸⁹ is an apocalyptic number.

801089 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

801089 is a deficient number, since it is larger than the sum of its proper divisors (9091).

801089 is an equidigital number, since it uses as much as digits as its factorization.

801089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 801089 is about 895.0357534758. The cubic root of 801089 is about 92.8738799923.

The spelling of 801089 in words is "eight hundred one thousand, eighty-nine".