636026 has 8 divisors (see below), whose sum is σ = 960384. Its totient is φ = 315900.

The previous prime is 636023. The next prime is 636043. The reversal of 636026 is 620636.

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 = 635992 and 636010.

It is not an unprimeable number, because it can be changed into a prime (636023) by changing a digit.

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, 650 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (120048).

2⁶³⁶⁰²⁶ is an apocalyptic number.

636026 is a deficient number, since it is larger than the sum of its proper divisors (324358).

636026 is a wasteful number, since it uses less digits than its factorization.

636026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 636026 is about 797.5123823490. The cubic root of 636026 is about 85.9986478965.

The spelling of 636026 in words is "six hundred thirty-six thousand, twenty-six".