434521 has 2 divisors, whose sum is σ = 434522. Its totient is φ = 434520.

The previous prime is 434509. The next prime is 434561. The reversal of 434521 is 125434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416025 + 18496 = 645^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 434521 - 2⁹ = 434009 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (434501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217260 + 217261.

It is an arithmetic number, because the mean of its divisors is an integer number (217261).

2⁴³⁴⁵²¹ is an apocalyptic number.

It is an amenable number.

434521 is a deficient number, since it is larger than the sum of its proper divisors (1).

434521 is an equidigital number, since it uses as much as digits as its factorization.

434521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 19.

The square root of 434521 is about 659.1820689309. The cubic root of 434521 is about 75.7420269940.

Adding to 434521 its reverse (125434), we get a palindrome (559955).

The spelling of 434521 in words is "four hundred thirty-four thousand, five hundred twenty-one".