798851 has 4 divisors (see below), whose sum is σ = 800712. Its totient is φ = 796992.

The previous prime is 798823. The next prime is 798871. The reversal of 798851 is 158897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158897 = 19 ⋅8363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80 + ... + 1266.

It is an arithmetic number, because the mean of its divisors is an integer number (200178).

2⁷⁹⁸⁸⁵¹ is an apocalyptic number.

798851 is a deficient number, since it is larger than the sum of its proper divisors (1861).

798851 is a wasteful number, since it uses less digits than its factorization.

798851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its digits is 20160, while the sum is 38.

The square root of 798851 is about 893.7846496780. The cubic root of 798851 is about 92.7873121650.

The spelling of 798851 in words is "seven hundred ninety-eight thousand, eight hundred fifty-one".