798638 has 8 divisors (see below), whose sum is σ = 1204632. Its totient is φ = 397096.

The previous prime is 798613. The next prime is 798641. The reversal of 798638 is 836897.

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

It is a junction number, because it is equal to n+sod(n) for n = 798595 and 798604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (150579).

2⁷⁹⁸⁶³⁸ is an apocalyptic number.

798638 is a deficient number, since it is larger than the sum of its proper divisors (405994).

798638 is a wasteful number, since it uses less digits than its factorization.

798638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

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

The square root of 798638 is about 893.6654855146. The cubic root of 798638 is about 92.7790647136.

The spelling of 798638 in words is "seven hundred ninety-eight thousand, six hundred thirty-eight".