801023 has 4 divisors (see below), whose sum is σ = 848160. Its totient is φ = 753888.

The previous prime is 801019. The next prime is 801037. The reversal of 801023 is 320108.

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 801023 - 2² = 801019 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 800989 and 801007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23543 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

2⁸⁰¹⁰²³ is an apocalyptic number.

801023 is a deficient number, since it is larger than the sum of its proper divisors (47137).

801023 is a wasteful number, since it uses less digits than its factorization.

801023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47136.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 801023 is about 894.9988826809. The cubic root of 801023 is about 92.8713293625.

The spelling of 801023 in words is "eight hundred one thousand, twenty-three".