801579 has 4 divisors (see below), whose sum is σ = 1068776. Its totient is φ = 534384.

The previous prime is 801571. The next prime is 801607. The reversal of 801579 is 975108.

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

It is not a de Polignac number, because 801579 - 2³ = 801571 is a prime.

It is a D-number.

It is a Duffinian number.

801579 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (801571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133594 + ... + 133599.

It is an arithmetic number, because the mean of its divisors is an integer number (267194).

2⁸⁰¹⁵⁷⁹ is an apocalyptic number.

801579 is a deficient number, since it is larger than the sum of its proper divisors (267197).

801579 is a wasteful number, since it uses less digits than its factorization.

801579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267196.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 801579 is about 895.3094437121. The cubic root of 801579 is about 92.8928121067.

The spelling of 801579 in words is "eight hundred one thousand, five hundred seventy-nine".