623356163 has 2 divisors, whose sum is σ = 623356164. Its totient is φ = 623356162.

The previous prime is 623356147. The next prime is 623356171. The reversal of 623356163 is 361653326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623356163 - 2⁴ = 623356147 is a prime.

It is not a weakly prime, because it can be changed into another prime (623356763) 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, 311678081 + 311678082.

It is an arithmetic number, because the mean of its divisors is an integer number (311678082).

Almost surely, 2^623356163 is an apocalyptic number.

623356163 is a deficient number, since it is larger than the sum of its proper divisors (1).

623356163 is an equidigital number, since it uses as much as digits as its factorization.

623356163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 35.

The square root of 623356163 is about 24967.1016139239. The cubic root of 623356163 is about 854.2377360825.

The spelling of 623356163 in words is "six hundred twenty-three million, three hundred fifty-six thousand, one hundred sixty-three".