434789213 has 2 divisors, whose sum is σ = 434789214. Its totient is φ = 434789212.

The previous prime is 434789209. The next prime is 434789221. The reversal of 434789213 is 312987434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403126084 + 31663129 = 20078^2 + 5627^2 .

It is a cyclic number.

It is not a de Polignac number, because 434789213 - 2² = 434789209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434789513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217394606 + 217394607.

It is an arithmetic number, because the mean of its divisors is an integer number (217394607).

Almost surely, 2^434789213 is an apocalyptic number.

It is an amenable number.

434789213 is a deficient number, since it is larger than the sum of its proper divisors (1).

434789213 is an equidigital number, since it uses as much as digits as its factorization.

434789213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 434789213 is about 20851.5997707610. The cubic root of 434789213 is about 757.5760799608.

The spelling of 434789213 in words is "four hundred thirty-four million, seven hundred eighty-nine thousand, two hundred thirteen".