863798 has 8 divisors (see below), whose sum is σ = 1395408. Its totient is φ = 398664.

The previous prime is 863783. The next prime is 863801. The reversal of 863798 is 897368.

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

It is a super-2 number, since 2×863798² = 1492293969608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 16586 + ... + 16637.

It is an arithmetic number, because the mean of its divisors is an integer number (174426).

2⁸⁶³⁷⁹⁸ is an apocalyptic number.

863798 is a deficient number, since it is larger than the sum of its proper divisors (531610).

863798 is a wasteful number, since it uses less digits than its factorization.

863798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33238.

The product of its digits is 72576, while the sum is 41.

The square root of 863798 is about 929.4073380386. The cubic root of 863798 is about 95.2366399698.

It can be divided in two parts, 863 and 798, that added together give a palindrome (1661).

The spelling of 863798 in words is "eight hundred sixty-three thousand, seven hundred ninety-eight".