800634 has 8 divisors (see below), whose sum is σ = 1601280. Its totient is φ = 266876.

The previous prime is 800623. The next prime is 800647. The reversal of 800634 is 436008.

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

800634 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 800634.

It is an unprimeable number.

800634 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66714 + ... + 66725.

It is an arithmetic number, because the mean of its divisors is an integer number (200160).

2⁸⁰⁰⁶³⁴ is an apocalyptic number.

800634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800634 is a wasteful number, since it uses less digits than its factorization.

800634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133444.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 800634 is about 894.7815375833. The cubic root of 800634 is about 92.8562932579.

The spelling of 800634 in words is "eight hundred thousand, six hundred thirty-four".