636046 has 4 divisors (see below), whose sum is σ = 954072. Its totient is φ = 318022.

The previous prime is 636043. The next prime is 636059. The reversal of 636046 is 640636.

It is a happy number.

636046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 636046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159010 + ... + 159013.

It is an arithmetic number, because the mean of its divisors is an integer number (238518).

2⁶³⁶⁰⁴⁶ is an apocalyptic number.

636046 is a deficient number, since it is larger than the sum of its proper divisors (318026).

636046 is a wasteful number, since it uses less digits than its factorization.

636046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318025.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 636046 is about 797.5249212407. The cubic root of 636046 is about 85.9995493036. Note that the first 3 decimals are identical.

The spelling of 636046 in words is "six hundred thirty-six thousand, forty-six".