423425 has 6 divisors (see below), whose sum is σ = 525078. Its totient is φ = 338720.

The previous prime is 423413. The next prime is 423427. The reversal of 423425 is 524324.

It can be written as a sum of positive squares in 3 ways, for example, as 12544 + 410881 = 112^2 + 641^2 .

It is not a de Polignac number, because 423425 - 2¹² = 419329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423397 and 423406.

It is not an unprimeable number, because it can be changed into a prime (423427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8444 + ... + 8493.

It is an arithmetic number, because the mean of its divisors is an integer number (87513).

2⁴²³⁴²⁵ is an apocalyptic number.

It is an amenable number.

423425 is a deficient number, since it is larger than the sum of its proper divisors (101653).

423425 is a wasteful number, since it uses less digits than its factorization.

423425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16947 (or 16942 counting only the distinct ones).

The product of its digits is 960, while the sum is 20.

The square root of 423425 is about 650.7111494358. The cubic root of 423425 is about 75.0917395907.

Adding to 423425 its reverse (524324), we get a palindrome (947749).

It can be divided in two parts, 423 and 425, that added together give a palindrome (848).

The spelling of 423425 in words is "four hundred twenty-three thousand, four hundred twenty-five".