423667229 has 2 divisors, whose sum is σ = 423667230. Its totient is φ = 423667228.

The previous prime is 423667207. The next prime is 423667267. The reversal of 423667229 is 922766324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416241604 + 7425625 = 20402^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 423667229 - 2¹⁶ = 423601693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423667129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211833614 + 211833615.

It is an arithmetic number, because the mean of its divisors is an integer number (211833615).

Almost surely, 2^423667229 is an apocalyptic number.

It is an amenable number.

423667229 is a deficient number, since it is larger than the sum of its proper divisors (1).

423667229 is an equidigital number, since it uses as much as digits as its factorization.

423667229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 423667229 is about 20583.1783017104. The cubic root of 423667229 is about 751.0605612026.

The spelling of 423667229 in words is "four hundred twenty-three million, six hundred sixty-seven thousand, two hundred twenty-nine".