801066 has 16 divisors (see below), whose sum is σ = 1831104. Its totient is φ = 228864.

The previous prime is 801061. The next prime is 801077. The reversal of 801066 is 660108.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 801066.

It is not an unprimeable number, because it can be changed into a prime (801061) by changing a digit.

801066 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9495 + ... + 9578.

It is an arithmetic number, because the mean of its divisors is an integer number (114444).

2⁸⁰¹⁰⁶⁶ is an apocalyptic number.

801066 is an abundant number, since it is smaller than the sum of its proper divisors (1030038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

801066 is a wasteful number, since it uses less digits than its factorization.

801066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 801066 is about 895.0229047348. The cubic root of 801066 is about 92.8729911524.

The spelling of 801066 in words is "eight hundred one thousand, sixty-six".