638063 has 2 divisors, whose sum is σ = 638064. Its totient is φ = 638062.

The previous prime is 638059. The next prime is 638081. The reversal of 638063 is 360836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 638063 - 2² = 638059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (638023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319031 + 319032.

It is an arithmetic number, because the mean of its divisors is an integer number (319032).

2⁶³⁸⁰⁶³ is an apocalyptic number.

638063 is a deficient number, since it is larger than the sum of its proper divisors (1).

638063 is an equidigital number, since it uses as much as digits as its factorization.

638063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 638063 is about 798.7884576031. The cubic root of 638063 is about 86.0903593267.

Adding to 638063 its reverse (360836), we get a palindrome (998899).

The spelling of 638063 in words is "six hundred thirty-eight thousand, sixty-three".