798391 has 8 divisors (see below), whose sum is σ = 877968. Its totient is φ = 720000.

The previous prime is 798383. The next prime is 798397. The reversal of 798391 is 193897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(798391) divides (798391-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 798391 - 2³ = 798383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 798391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (109746).

2⁷⁹⁸³⁹¹ is an apocalyptic number.

798391 is a deficient number, since it is larger than the sum of its proper divisors (79577).

798391 is a wasteful number, since it uses less digits than its factorization.

798391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its digits is 13608, while the sum is 37.

The square root of 798391 is about 893.5272799417. The cubic root of 798391 is about 92.7694989313.

The spelling of 798391 in words is "seven hundred ninety-eight thousand, three hundred ninety-one".