800638 has 8 divisors (see below), whose sum is σ = 1213632. Its totient is φ = 396096.

The previous prime is 800623. The next prime is 800647. The reversal of 800638 is 836008.

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

It is a congruent number.

It is an unprimeable number.

800638 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870 + ... + 2257.

It is an arithmetic number, because the mean of its divisors is an integer number (151704).

2⁸⁰⁰⁶³⁸ is an apocalyptic number.

800638 is a deficient number, since it is larger than the sum of its proper divisors (412994).

800638 is a wasteful number, since it uses less digits than its factorization.

800638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 800638 is about 894.7837727630. The cubic root of 800638 is about 92.8564478956.

The spelling of 800638 in words is "eight hundred thousand, six hundred thirty-eight".