434430679 has 2 divisors, whose sum is σ = 434430680. Its totient is φ = 434430678.

The previous prime is 434430641. The next prime is 434430691. The reversal of 434430679 is 976034434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434430679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434433679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217215339 + 217215340.

It is an arithmetic number, because the mean of its divisors is an integer number (217215340).

Almost surely, 2^434430679 is an apocalyptic number.

434430679 is a deficient number, since it is larger than the sum of its proper divisors (1).

434430679 is an equidigital number, since it uses as much as digits as its factorization.

434430679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 434430679 is about 20843.0007196661. Note that the first 3 decimals coincide. The cubic root of 434430679 is about 757.3677863262.

The spelling of 434430679 in words is "four hundred thirty-four million, four hundred thirty thousand, six hundred seventy-nine".