633823 has 2 divisors, whose sum is σ = 633824. Its totient is φ = 633822.

The previous prime is 633803. The next prime is 633833. The reversal of 633823 is 328336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 633823 - 2⁵ = 633791 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316911 + 316912.

It is an arithmetic number, because the mean of its divisors is an integer number (316912).

2⁶³³⁸²³ is an apocalyptic number.

633823 is a deficient number, since it is larger than the sum of its proper divisors (1).

633823 is an equidigital number, since it uses as much as digits as its factorization.

633823 is an evil number, because the sum of its binary digits is even.

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

The square root of 633823 is about 796.1300145077. The cubic root of 633823 is about 85.8992420120.

The spelling of 633823 in words is "six hundred thirty-three thousand, eight hundred twenty-three".