434103221 has 2 divisors, whose sum is σ = 434103222. Its totient is φ = 434103220.

The previous prime is 434103217. The next prime is 434103253. The reversal of 434103221 is 122301434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267976900 + 166126321 = 16370^2 + 12889^2 .

It is a cyclic number.

It is not a de Polignac number, because 434103221 - 2² = 434103217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434103193 and 434103202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434103821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217051610 + 217051611.

It is an arithmetic number, because the mean of its divisors is an integer number (217051611).

Almost surely, 2^434103221 is an apocalyptic number.

It is an amenable number.

434103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

434103221 is an equidigital number, since it uses as much as digits as its factorization.

434103221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 434103221 is about 20835.1438919917. The cubic root of 434103221 is about 757.1774464237.

Adding to 434103221 its reverse (122301434), we get a palindrome (556404655).

The spelling of 434103221 in words is "four hundred thirty-four million, one hundred three thousand, two hundred twenty-one".