801398 has 12 divisors (see below), whose sum is σ = 1302228. Its totient is φ = 369720.

The previous prime is 801379. The next prime is 801403. The reversal of 801398 is 893108.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 801398.

It is a congruent number.

It is an unprimeable number.

801398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 848 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (108519).

2⁸⁰¹³⁹⁸ is an apocalyptic number.

801398 is a deficient number, since it is larger than the sum of its proper divisors (500830).

801398 is a wasteful number, since it uses less digits than its factorization.

801398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2386 counting only the distinct ones).

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

The square root of 801398 is about 895.2083556357. The cubic root of 801398 is about 92.8858197143.

The spelling of 801398 in words is "eight hundred one thousand, three hundred ninety-eight".