423601 has 2 divisors, whose sum is σ = 423602. Its totient is φ = 423600.

The previous prime is 423587. The next prime is 423617. The reversal of 423601 is 106324.

It is an a-pointer prime, because the next prime (423617) can be obtained adding 423601 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389376 + 34225 = 624^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 423601 - 2¹³ = 415409 is a prime.

It is not a weakly prime, because it can be changed into another prime (423001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211800 + 211801.

It is an arithmetic number, because the mean of its divisors is an integer number (211801).

2⁴²³⁶⁰¹ is an apocalyptic number.

It is an amenable number.

423601 is a deficient number, since it is larger than the sum of its proper divisors (1).

423601 is an equidigital number, since it uses as much as digits as its factorization.

423601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 423601 is about 650.8463720418. The cubic root of 423601 is about 75.1021423110.

Adding to 423601 its reverse (106324), we get a palindrome (529925).

It can be divided in two parts, 423 and 601, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 423601 in words is "four hundred twenty-three thousand, six hundred one".