636794 has 8 divisors (see below), whose sum is σ = 960768. Its totient is φ = 316540.

The previous prime is 636781. The next prime is 636809. The reversal of 636794 is 497636.

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

It is a super-3 number, since 3×636794³ = 774672506533362552, which contains 333 as substring.

It is an unprimeable 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, 452 + ... + 1215.

It is an arithmetic number, because the mean of its divisors is an integer number (120096).

2⁶³⁶⁷⁹⁴ is an apocalyptic number.

636794 is a deficient number, since it is larger than the sum of its proper divisors (323974).

636794 is a wasteful number, since it uses less digits than its factorization.

636794 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 27216, while the sum is 35.

The square root of 636794 is about 797.9937343112. The cubic root of 636794 is about 86.0332483665.

The spelling of 636794 in words is "six hundred thirty-six thousand, seven hundred ninety-four".