423618337 has 2 divisors, whose sum is σ = 423618338. Its totient is φ = 423618336.

The previous prime is 423618331. The next prime is 423618361. The reversal of 423618337 is 733816324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364389921 + 59228416 = 19089^2 + 7696^2 .

It is a cyclic number.

It is not a de Polignac number, because 423618337 - 2¹¹ = 423616289 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 423618296 and 423618305.

It is not a weakly prime, because it can be changed into another prime (423618331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211809168 + 211809169.

It is an arithmetic number, because the mean of its divisors is an integer number (211809169).

Almost surely, 2^423618337 is an apocalyptic number.

It is an amenable number.

423618337 is a deficient number, since it is larger than the sum of its proper divisors (1).

423618337 is an equidigital number, since it uses as much as digits as its factorization.

423618337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 423618337 is about 20581.9905985791. The cubic root of 423618337 is about 751.0316688212.

The spelling of 423618337 in words is "four hundred twenty-three million, six hundred eighteen thousand, three hundred thirty-seven".