485638 has 4 divisors (see below), whose sum is σ = 728460. Its totient is φ = 242818.

The previous prime is 485609. The next prime is 485647. The reversal of 485638 is 836584.

485638 is digitally balanced in base 3, 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 congruent number.

It is an unprimeable number.

485638 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 as a sum of consecutive naturals, namely, 121408 + ... + 121411.

It is an arithmetic number, because the mean of its divisors is an integer number (182115).

2⁴⁸⁵⁶³⁸ is an apocalyptic number.

485638 is a deficient number, since it is larger than the sum of its proper divisors (242822).

485638 is a wasteful number, since it uses less digits than its factorization.

485638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242821.

The product of its digits is 23040, while the sum is 34.

The square root of 485638 is about 696.8773206239. The cubic root of 485638 is about 78.6027162289.

It can be divided in two parts, 4856 and 38, that multiplied together give a triangular number (184528 = T₆₀₇).

The spelling of 485638 in words is "four hundred eighty-five thousand, six hundred thirty-eight".