636263 has 2 divisors, whose sum is σ = 636264. Its totient is φ = 636262.

The previous prime is 636257. The next prime is 636277. The reversal of 636263 is 362636.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 636263 - 2⁴ = 636247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318131 + 318132.

It is an arithmetic number, because the mean of its divisors is an integer number (318132).

2⁶³⁶²⁶³ is an apocalyptic number.

636263 is a deficient number, since it is larger than the sum of its proper divisors (1).

636263 is an equidigital number, since it uses as much as digits as its factorization.

636263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 636263 is about 797.6609555444. The cubic root of 636263 is about 86.0093283553.

Adding to 636263 its reverse (362636), we get a palindrome (998899).

The spelling of 636263 in words is "six hundred thirty-six thousand, two hundred sixty-three".