423626237 has 2 divisors, whose sum is σ = 423626238. Its totient is φ = 423626236.

The previous prime is 423626197. The next prime is 423626251. The reversal of 423626237 is 732626324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349166596 + 74459641 = 18686^2 + 8629^2 .

It is a cyclic number.

It is not a de Polignac number, because 423626237 - 2¹² = 423622141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423626197 and 423626206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423626737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211813118 + 211813119.

It is an arithmetic number, because the mean of its divisors is an integer number (211813119).

Almost surely, 2^423626237 is an apocalyptic number.

It is an amenable number.

423626237 is a deficient number, since it is larger than the sum of its proper divisors (1).

423626237 is an equidigital number, since it uses as much as digits as its factorization.

423626237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 35.

The square root of 423626237 is about 20582.1825130378. The cubic root of 423626237 is about 751.0363374208.

The spelling of 423626237 in words is "four hundred twenty-three million, six hundred twenty-six thousand, two hundred thirty-seven".