636248 has 8 divisors (see below), whose sum is σ = 1192980. Its totient is φ = 318120.

The previous prime is 636247. The next prime is 636257. The reversal of 636248 is 842636.

636248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 636248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39758 + ... + 39773.

2⁶³⁶²⁴⁸ is an apocalyptic number.

It is an amenable number.

636248 is a deficient number, since it is larger than the sum of its proper divisors (556732).

636248 is a wasteful number, since it uses less digits than its factorization.

636248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79537 (or 79533 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 636248 is about 797.6515529979. The cubic root of 636248 is about 86.0086524556.

The spelling of 636248 in words is "six hundred thirty-six thousand, two hundred forty-eight".