423223237 has 2 divisors, whose sum is σ = 423223238. Its totient is φ = 423223236.

The previous prime is 423223217. The next prime is 423223249. The reversal of 423223237 is 732322324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371756961 + 51466276 = 19281^2 + 7174^2 .

It is a cyclic number.

It is not a de Polignac number, because 423223237 - 2¹¹ = 423221189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423223217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211611618 + 211611619.

It is an arithmetic number, because the mean of its divisors is an integer number (211611619).

Almost surely, 2^423223237 is an apocalyptic number.

It is an amenable number.

423223237 is a deficient number, since it is larger than the sum of its proper divisors (1).

423223237 is an equidigital number, since it uses as much as digits as its factorization.

423223237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 28.

The square root of 423223237 is about 20572.3901625455. The cubic root of 423223237 is about 750.7981056611.

The spelling of 423223237 in words is "four hundred twenty-three million, two hundred twenty-three thousand, two hundred thirty-seven".