434633729 has 2 divisors, whose sum is σ = 434633730. Its totient is φ = 434633728.

The previous prime is 434633687. The next prime is 434633753. The reversal of 434633729 is 927336434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403809025 + 30824704 = 20095^2 + 5552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434633729 is a prime.

It is not a weakly prime, because it can be changed into another prime (434633029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217316864 + 217316865.

It is an arithmetic number, because the mean of its divisors is an integer number (217316865).

Almost surely, 2^434633729 is an apocalyptic number.

It is an amenable number.

434633729 is a deficient number, since it is larger than the sum of its proper divisors (1).

434633729 is an equidigital number, since it uses as much as digits as its factorization.

434633729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 41.

The square root of 434633729 is about 20847.8710903536. The cubic root of 434633729 is about 757.4857641637.

The spelling of 434633729 in words is "four hundred thirty-four million, six hundred thirty-three thousand, seven hundred twenty-nine".