801389 has 4 divisors (see below), whose sum is σ = 836256. Its totient is φ = 766524.

The previous prime is 801379. The next prime is 801403. The reversal of 801389 is 983108.

It is a happy number.

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 801389 - 2¹⁶ = 735853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801349) 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, 17399 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (209064).

2⁸⁰¹³⁸⁹ is an apocalyptic number.

It is an amenable number.

801389 is a deficient number, since it is larger than the sum of its proper divisors (34867).

801389 is a wasteful number, since it uses less digits than its factorization.

801389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34866.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 801389 is about 895.2033288589. The cubic root of 801389 is about 92.8854719988.

The spelling of 801389 in words is "eight hundred one thousand, three hundred eighty-nine".