667363223 has 2 divisors, whose sum is σ = 667363224. Its totient is φ = 667363222.

The previous prime is 667363217. The next prime is 667363231. The reversal of 667363223 is 322363766.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667363223 - 2¹⁸ = 667101079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667063223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333681611 + 333681612.

It is an arithmetic number, because the mean of its divisors is an integer number (333681612).

Almost surely, 2^667363223 is an apocalyptic number.

667363223 is a deficient number, since it is larger than the sum of its proper divisors (1).

667363223 is an equidigital number, since it uses as much as digits as its factorization.

667363223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 38.

The square root of 667363223 is about 25833.3742085698. The cubic root of 667363223 is about 873.8846078372.

It can be divided in two parts, 6673 and 63223, that added together give a palindrome (69896).

The spelling of 667363223 in words is "six hundred sixty-seven million, three hundred sixty-three thousand, two hundred twenty-three".