662811223 has 2 divisors, whose sum is σ = 662811224. Its totient is φ = 662811222.

The previous prime is 662811209. The next prime is 662811239. The reversal of 662811223 is 322118266.

662811223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662811223 - 2²⁵ = 629256791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662811823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331405611 + 331405612.

It is an arithmetic number, because the mean of its divisors is an integer number (331405612).

Almost surely, 2^662811223 is an apocalyptic number.

662811223 is a deficient number, since it is larger than the sum of its proper divisors (1).

662811223 is an equidigital number, since it uses as much as digits as its factorization.

662811223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 662811223 is about 25745.1203726065. The cubic root of 662811223 is about 871.8931878085.

Adding to 662811223 its reverse (322118266), we get a palindrome (984929489).

The spelling of 662811223 in words is "six hundred sixty-two million, eight hundred eleven thousand, two hundred twenty-three".